100 integrals (world record?)

แชร์
ฝัง

ความคิดเห็น • 13K

  • @LS-Moto
    @LS-Moto 5 ปีที่แล้ว +29878

    WOW... hope this record gets acknowledged and you get an entry in the guiness book of world record. And the person Lars mentioned in the video is me, so thank you so much bprp, and thanks to all others wishing me well. I finished the first of 3 chemo rounds, and apart from about 2-3 days, I did quite well on it. If things go well with chemo, I could be free from cancer by the end of April.

    • @vikasdeep6393
      @vikasdeep6393 5 ปีที่แล้ว +346

      👍👍👍

    • @Sionweit
      @Sionweit 5 ปีที่แล้ว +484

      Dude, best of luck, I hope it all works out for you.

    • @AndDiracisHisProphet
      @AndDiracisHisProphet 5 ปีที่แล้ว +205

      Best wishes, man. Cancer is an asshole, so make sure you beat it!

    • @LS-Moto
      @LS-Moto 5 ปีที่แล้ว +315

      Thanks to all of you. When I'm free of cancer, I will let bprp know, and he can let you all know. I have testicular cancer, and my chances of beating and surviving the next 5 years are at 95%, the highest percentage among all cancers. So I consider myself still lucky :)

    • @LS-Moto
      @LS-Moto 5 ปีที่แล้ว +154

      @@blackpenredpen Yes, when I saw the almost 6 hour mark, it all started to make sense why you were tired, and so on. Don't worry too much about the integral. Take a break, rest a bit and be there for your students :) ... we'll be here. And even if you don't get an entry in a record book, you deserve to feel well about it, and hey, you set a benchmark for someone to challenge your 100 integrals. That's impressive :)

  • @canerylmaz3896
    @canerylmaz3896 4 ปีที่แล้ว +47729

    If you watch the video reverse, you learn the derivative.

  • @rosroblechannel
    @rosroblechannel 5 ปีที่แล้ว +1250

    Please, differentiate all the results in one take to check

    • @Atlas92936
      @Atlas92936 5 ปีที่แล้ว +63

      LMFAOO

    • @pratyakshyt
      @pratyakshyt 5 ปีที่แล้ว +3

      Lol

    • @richardyuan7992
      @richardyuan7992 5 ปีที่แล้ว +7

      This comment saved my day. Really!

    • @chrisdark999
      @chrisdark999 5 ปีที่แล้ว +2

      HAHAHAHAHA!!!

    • @jackiekwan
      @jackiekwan 5 ปีที่แล้ว +20

      How to diffrenciate the answer of a definite integral :P

  • @cristobalperezperez6784
    @cristobalperezperez6784 4 ปีที่แล้ว +5094

    My man never forgotten to put the “dx” and “+C”

    • @c3p01
      @c3p01 4 ปีที่แล้ว +49

      Yes 😂👍🏽

    • @executorarktanis2323
      @executorarktanis2323 4 ปีที่แล้ว +62

      As you never should

    • @ramprakash412
      @ramprakash412 4 ปีที่แล้ว +118

      Who are all used to forgot +c at last like me🤣🤣

    • @bapisahu420
      @bapisahu420 4 ปีที่แล้ว +14

      So true.... I never put while solving.. It's kinda frustrating I guess...

    • @algunasclasesindustrial232
      @algunasclasesindustrial232 4 ปีที่แล้ว +16

      i didnt put the + C today 🤦‍♂️

  • @AlineMayne1
    @AlineMayne1 2 ปีที่แล้ว +1521

    I love that you didn't just solve them, you also explained everything!

  • @kallzvx858
    @kallzvx858 5 ปีที่แล้ว +3576

    wtf.. he also explain his steps for every question...

  • @snakesocks
    @snakesocks 5 ปีที่แล้ว +5996

    I, on the other hand, can do 1 integral in 100 takes!

    • @bananabananae
      @bananabananae 5 ปีที่แล้ว +388

      Me too but with 100 different answers 😂

    • @glilyjebamalardaviitkharag8763
      @glilyjebamalardaviitkharag8763 5 ปีที่แล้ว +123

      @@bananabananae not very difficult, as c can take any value each time!

    • @itssheeza2324
      @itssheeza2324 5 ปีที่แล้ว +7

      haha when dumb people make a relatable comment, it hurts my soul inside. One person will try to be funny and say something, showing how dumb they are and how they dont think they are better then anything, literally. Then a barrage of others will follow along.
      Look 4 all of you duuuuuumb bots, math is easy, i dont understand why people think its hard, its just a bunch of measurements

    • @pritamsinghdhanjal00
      @pritamsinghdhanjal00 5 ปีที่แล้ว +7

      @@glilyjebamalardaviitkharag8763 caught that well...👍

    • @luiszepeda2525
      @luiszepeda2525 5 ปีที่แล้ว +1

      Thomae function

  • @hlhlgd9610
    @hlhlgd9610 ปีที่แล้ว +512

    it's MY sleepover and I get to choose the movie

    • @rkadarshkumar999
      @rkadarshkumar999 หลายเดือนก่อน +6

      I would always hang out with you if you actually play this at sleepover 😂

    • @Puchumawww
      @Puchumawww หลายเดือนก่อน

      @@rkadarshkumar999count me in 😂

    • @ரக்ஷித்2007
      @ரக்ஷித்2007 12 วันที่ผ่านมา

      ​@@rkadarshkumar999same, I'd love to too❤

  • @eddyfer.Y
    @eddyfer.Y 4 ปีที่แล้ว +2500

    1, Integral of tan^5(x)*sec^3(x), 2:19
    2, Integral of cos(2x)/(sin(x)+cos(x)), 5:58
    3, Integral of (x^2+1)/(x^4-x^2+1), 8:00
    4, Integral of (x+e^x)^2, 12:00
    5, Integral of csc^3(x)*sec(x), 14:00
    6, Integral of cos(x)/(sin^2(x)-5sin(x)-6), 20:00
    7, Integral of 1/sqrt(e^x), 23:38
    8, Integral of e^x*sqrt(e^x-1)/(e^x+3), 25:51
    9, Integral of 1/(x+sqrt(x)), 32:04
    10, Integral of abs(x-3) from -1 to 5, 34:39
    11, Integral of sin(x)/sec^2019(x), 37:19
    12, Integral of x*sin^-1(x)/sqrt(1-x^2), 39:00
    13, Integral of 2sin(x)/sin(2x), 43:06
    14, Integral of cos^2(2x), 45:36
    15, Integral of 1/(x^3+1), 47:55
    16, Integral of x*sin^2(x), 1:01:07
    17, Integral of (x+1/x)^2, 1:04:45
    18, Integral of 3/(x^2+4x+29), 1:06:00
    19, Integral of cot^5(x), 1:08:08
    20, Integral of tan(x)/(x^4-x^2+1) from -1 to 1, 1:12:06
    21, Integral of sin^3(x)*cos^2(x), 1:13:43
    22, Integral of 1/(x^2*sqrt(x^2+1)), 1:16:16
    23, Integral of sin(x)*sec(x)*tan(x), 1:20:15
    24, Integral of sec^3(x), 1:21:30
    25, Integral of 1/(x*sqrt(9x^2-1)), 1:25:30
    Thanks to GaMeR 123
    26. 1:29:48 integral of cos(sqrt x)
    27. 1:31:35 integral of cosec x
    28. 1:34:09 integral of sqrt(x^2+4x+13)
    29. 1:43:26 integral of e^2x*cosx
    30. 1:46:43 integral of (x-3)^9 from 3 to 5
    31. 1:49:32 integral of (x-x^(3/2))^-1/2
    32. 1:52:37 integral of (x-x^2)^-1/2
    33. 1:56:03 integral of e^(2lnx)
    34. 1:56:57 integral of lnx/sqrt x
    35. 2:00:32 integral of 1/e^x+e^-x
    36. 2:01:57 integral of log(x) base 2
    37. 2:05:15 integral of x^3*sin2x
    38. 2:08:32 integral of x^2[1+x^3]^1/3
    39. 2:12:30
    40. 2:19:38 integral of sqrt(x^2-1) from 1 to 2
    41. 2:27:29 integral of sinh(x)
    42. 2:28:50 integral of (sinhx)^2
    43. 2:32:53 integral of (sinhx)^3
    44. 2:35:03 integral of 1/sqrt(x^2 + 1)
    45. 2:36:34 integral of ln(x + sqrt(x^2 + 1)
    46. 2:39:23 integral of tanh(x) 47. 2:40:59 integral of sech(x)
    48. 2:48:37 integral of tanh inverse of x
    49. 2:43:15 integral of sqrt(tanhx)
    50. 2:51:20 integral of [x] from 0 to 5
    51. 2:53:40 integral of (secx)^6
    BIG thanks to Angel Mendez-Rivera
    52, Integral of 1/(5x - 2)^4, 2:55:51
    53, Integral of ln(1 + x^2), 2:57:18
    54, Integral of 1/(x^4 + x), 3:00:42
    55, Integral of (1 - tan(x))/(1 + tan(x)), 3:03:09
    56, Integral of x·sec(x)·tan(x), 3:05:08
    57, Integral of arcsec(x), 3:06:45
    58, Integral of (1 - cos(x))/(1 + cos(x)), 3:11:20
    59, Integral of (x^2)sqrt(x + 4), 3:14:46
    60, Integral of sqrt(4 - x^2) from -1 to 1, 3:18:38
    61, Integral of sqrt(x^2 + 4x), 3:25:10
    62, Integral of (x^2)e^(x^3), 3:36:48
    63, Integral of (x^3)e^(x^2), 3:37:27
    64, Integral of tan(x)ln(cos(x)), 3:39:55
    65, Integral of 1/(x^3 - 4x^2), 3:42:11
    66, Integral of sin(x)cos(2x), 3:50:00
    67, Integral of 2^ln(x), 3:58:06
    68, Integral of sqrt(1+cos(2x)), 4:01:21
    69, Integral of 1/(1+tan(x)), 4:02:40
    70, Integral of sqrt(1- ln(x)^2)/x from 1/e to e, 4:07:13
    71-72, Integral of 1/(cbrt(x)+1) & Integral of 1/cbrt(x + 1), 4:10:30
    73, Integral of (sin(x)+cos(x))^2, 4:14:10
    74, Integral of 2xln(1 x), 4:16:00
    75, Integral of 1/(x(1+sin(ln(x))^2)), 4:19:34
    76, Integral of sqrt((1-x)/(1+x)), 4:25:48
    77, Integral of x^(x/ln(x)), 4:27:52
    78, Integral of arcsin(sqrt(x)), 4:29:12
    79, Integral of arctan(x), 4:39:16
    80, Integral of f(x) from 0 to 5, f(x) is a piecewise function, 4:41:32
    81, Integral of sin(1/x)/x^3, 4:44:11
    82, Integral of (x-1)/(x^4-1), 4:47:18
    83, Integral of sqrt(1+(x-1/(4x))^2), 4:52:49
    84, Integral of e^tan(x)/(1-sin(x)^2), 4:55:17
    85, Integral of arctan(x)/x^2, 4:56:12
    86, Integral of arctan(x)/(1+x^2), 5:00:28
    87, Integral of ln(x)^2, 5:02:32
    88, Integral of sqrt(x^2+4)/x^2, 5:06:39
    89, Integral of sqrt(x + 4)/x, 5:13:46
    90, Integral of sin(x)^3/(cos(x)^3 + sin(x)^3) from 0 to π/2, 5:18:03
    91, Integral of x/(1 + x^4), 5:19:13
    92, Integral of e^sqrt(x), 5:20:07
    93, Integral of 1/csc(x)^3, 5:21:37
    94, Integral of arcsin/sqrt(1 - x^2), 5:24:16
    95, Integral of sqrt(1 + sin(2x)), 5:24:58
    96, Integral of x^(1/4), 5:26:22
    97, Integral of 1/(1 + e^x), 5:27:47
    98, Integral of sqrt(1 + e^x), 5:29:13
    99, Integral of sqrt(tan(x))/sin(2x), 5:34:43
    100, Integral of 1/(1 + sin(x) from 0 to π/2, 5:39:16
    101, Integral of sin(x)/x + ln(x)cos(x), 5:45:39
    I only copied from the description of the video, for easy access. Thanks for the likes, they were not necessary. 👋

    • @killua9365
      @killua9365 4 ปีที่แล้ว +120

      Insanity

    • @kripzgaming2044
      @kripzgaming2044 4 ปีที่แล้ว +16

      Wtf... 나니?!

    • @joules1377
      @joules1377 4 ปีที่แล้ว +19

      honor

    • @quadeca5617
      @quadeca5617 4 ปีที่แล้ว +58

      @Devadathan Mb he copied from description

    • @dpsy7574
      @dpsy7574 4 ปีที่แล้ว +8

      Nani?

  • @bprptw
    @bprptw 5 ปีที่แล้ว +1933

    Time stamps!
    Here are the time stamps:
    [Q1 to Q25, myself]
    Q1 Integral of tan^5(x)*sec^3(x), 2:19
    Q2 Integral of cos(2x)/(sin(x)+cos(x)), 5:58
    Q3 Integral of (x^2+1)/(x^4-x^2+1), 8:00
    Q4 Integral of (x+e^x)^2, 12:00
    Q5 Integral of csc^3(x)*sec(x), 14:00
    Q6 Integral of cos(x)/(sin^2(x)-5sin(x)-6), 20:00
    Q7 Integral of 1/sqrt(e^x), 23:38
    Q8 Integral of e^x*sqrt(e^x-1)/(e^x+3), 25:51
    Q9 Integral of 1/(x+sqrt(x)), 32:04
    Q10 Integral of abs(x-3) from -1 to 5, 34:39
    Q11 Integral of sin(x)/sec^2019(x), 37:19
    Q12 Integral of x*sin^-1(x)/sqrt(1-x^2), 39:00
    Q13 Integral of 2sin(x)/sin(2x), 43:06
    Q14 Integral of cos^2(2x), 45:36
    Q15 Integral of 1/(x^3+1), 47:55
    Q16 Integral of x*sin^2(x), 1:01:07
    Q17 Integral of (x+1/x)^2, 1:04:45
    Q18 Integral of 3/(x^2+4x+29), 1:06:00
    Q19 Integral of cot^5(x), 1:08:08
    Q20 Integral of tan(x)/(x^4-x^2+1) from -1 to 1, 1:12:06
    Q21 Integral of sin^3(x)*cos^2(x), 1:13:43
    Q22 Integral of 1/(x^2*sqrt(x^2+1)), 1:16:16
    Q23 Integral of sin(x)*sec(x)*tan(x), 1:20:15
    Q24 Integral of sec^3(x), 1:21:30
    Q25 Integral of 1/(x*sqrt(9x^2-1)), 1:25:30
    [26 to 51, thanks to GaMeR 123]
    26. 1:29:48 integral of cos(sqrt x)
    27. 1:31:35 integral of cosec x
    28. 1:34:09 integral of sqrt(x^2+4x+13)
    29. 1:43:26 integral of e^2x*cosx
    30. 1:46:43 integral of (x-3)^9 from 3 to 5
    31. 1:49:32 integral of (x-x^(3/2))^-1/2
    32. 1:52:37 integral of (x-x^2)^-1/2
    33. 1:56:03 integral of e^(2lnx)
    34. 1:56:57 integral of lnx/sqrt x
    35. 2:00:32 integral of 1/e^x+e^-x
    36. 2:01:57 integral of logx base 2
    37. 2:05:15 integral of x^3*sin2x
    38. 2:08:32 integral of x^2[1+x^3]^1/3
    39. 2:12:30 integral of 1/(x^2 + 4)^2
    40. 2:19:38 integral of sqrt(x^2-1) from 1 to 2
    41. 2:27:29 integral of sinh(x)
    42. 2:28:50 integral of (sinhx)^2
    43. 2:32:53 integral of (sinhx)^3
    44. 2:35:03 integral of 1/sqrt(x^2 + 1)
    45. 2:36:34 integral of ln(x + sqrt(x^2 + 1)
    46. 2:39:23 integral of tanhx
    47. 2:40:59 integral of sechx
    48. 2:48:37 integral of tanh inverse of x
    49. 2:43:15 integral of sqrt(tanhx)
    50. 2:51:20 integral of [x] from 0 to 5
    51. 2:53:40 integral of (secx)^6
    [Q52 to Q101, BIG thanks to Angel Mendez-Rivera]
    Q52, Integral of 1/(5x - 2)^4, 2:55:51
    Q53, Integral of ln(1 + x^2), 2:57:18
    Q54, Integral of 1/(x^4 + x), 3:00:42
    Q55, Integral of (1 - tan(x))/(1 + tan(x)), 3:03:09
    Q56, Integral of x·sec(x)·tan(x), 3:05:08
    Q57, Integral of arcsec(x), 3:06:45
    Q58, Integral of (1 - cos(x))/(1 + cos(x)), 3:11:20
    Q59, Integral of (x^2)sqrt(x + 4), 3:14:46
    Q60, Integral of sqrt(4 - x^2) from -1 to 1, 3:18:38
    Q61, Integral of sqrt(x^2 + 4x), 3:25:10
    Q62, Integral of (x^2)e^(x^3), 3:36:48
    Q63, Integral of (x^3)e^(x^2), 3:37:27
    Q64, Integral of tan(x)ln(cos(x)), 3:39:55
    Q65, Integral of 1/(x^3 - 4x^2), 3:42:11
    Q66, Integral of sin(x)cos(2x), 3:50:00
    Q67, Integral of 2^ln(x), 3:58:06
    Q68, Integral of sqrt(1 + cos(2x)), 4:01:21
    Q69, Integral of 1/(1 + tan(x)), 4:02:40
    Q70, Integral of sqrt(1 - ln(x)^2)/x from 1/e to e, 4:07:13
    Q71-72, Integral of 1/(cbrt(x) + 1) & Integral of 1/cbrt(x + 1), 4:10:30
    Q73, Integral of (sin(x) + cos(x))^2, 4:14:10
    Q74, Integral of 2xln(1 + x), 4:16:00
    Q75, Integral of 1/(x(1 + sin(ln(x))^2)), 4:19:34
    Q76, Integral of sqrt((1 - x)/(1 + x)), 4:25:48
    Q77, Integral of x^(x/ln(x)), 4:27:52
    Q78, Integral of arcsin(sqrt(x)), 4:29:12
    Q79, Integral of arctan(x), 4:39:16
    Q80, Integral of f(x) from 0 to 5, f(x) = 10 if x < 2 or x = 2, f(x) = 3x^2 - 2 if x > 2, 4:41:32
    Q81, Integral of sin(1/x)/x^3, 4:44:11
    Q82, Integral of (x - 1)/(x^4 - 1), 4:47:18
    Q83, Integral of sqrt(1 + (x - 1/(4x))^2), 4:52:49
    Q84, Integral of e^tan(x)/(1 - sin(x)^2), 4:55:17
    Q85, Integral of arctan(x)/x^2, 4:56:12
    Q86, Integral of arctan(x)/(1 + x^2), 5:00:28
    Q87, Integral of ln(x)^2, 5:02:32
    Q88, Integral of sqrt(x^2 + 4)/x^2, 5:06:39
    Q89, Integral of sqrt(x + 4)/x, 5:13:46
    Q90, Integral of sin(x)^3/(cos(x)^3 + sin(x)^3) from 0 to π/2, 5:18:03
    Q91, Integral of x/(1 + x^4), 5:19:13
    Q92, Integral of e^sqrt(x), 5:20:07
    Q93, Integral of 1/csc(x)^3, 5:21:37
    Q94, Integral of arcsin/sqrt(1 - x^2), 5:24:16
    Q95, Integral of sqrt(1 + sin(2x)), 5:24:58
    Q96, Integral of x^(1/4), 5:26:22
    Q97, Integral of 1/(1 + e^x), 5:27:47
    Q98, Integral of sqrt(1 + e^x), 5:29:13
    Q99, Integral of sqrt(tan(x))/sin(2x), 5:34:43
    Q100, Integral of 1/(1 + sin(x) from 0 to π/2, 5:39:16
    Q101, Integral of sin(x)/x + ln(x)cos(x), 5:45:39

    • @gautamtelang7491
      @gautamtelang7491 5 ปีที่แล้ว +21

      Thanks bro!

    • @gagandeepsingh7789
      @gagandeepsingh7789 5 ปีที่แล้ว +34

      Dude you're amazing

    • @birb1686
      @birb1686 5 ปีที่แล้ว +11

      Why!!!!!!!!!!!!!! Are!!!!!!!!!!!!! There!!!!!!!!!!! So!!!!!!!!!!! Many!!!!!!!!!!!!

    • @bprptw
      @bprptw 5 ปีที่แล้ว +6

      @@gagandeepsingh7789 : ))))
      btw, this is still me.

    • @geniousOG
      @geniousOG 5 ปีที่แล้ว +1

      Ward

  • @Potatoverynice
    @Potatoverynice 5 ปีที่แล้ว +4211

    *finally finishes*
    'press "start" to begin recording'

    • @miguelvanetta1485
      @miguelvanetta1485 5 ปีที่แล้ว +31

      HAHAHAHA LMAO

    • @86TheElite86
      @86TheElite86 5 ปีที่แล้ว +147

      FBI agent who was watching him the whole time: “Don’t worry, I gotchu covered BPRP.”

    • @Roddd2333
      @Roddd2333 5 ปีที่แล้ว +22

      owh that would be the worst day ever

    • @huntermoeller4040
      @huntermoeller4040 5 ปีที่แล้ว +19

      Omg I would kill myself

    • @SaritaKumari-16
      @SaritaKumari-16 5 ปีที่แล้ว +20

      that's why he was recording on an iPhone too. lol

  • @jyotipawar6996
    @jyotipawar6996 2 ปีที่แล้ว +95

    He explained each and every integral with immense subtleness till the end hats off 👏👏👏 wasnt expecting that

  • @nischay8521
    @nischay8521 3 ปีที่แล้ว +5469

    My man did *Math* for close to 6hrs straight.
    *RESPECT **_100_*

    • @BigPPwhofckedyourmomWoW
      @BigPPwhofckedyourmomWoW 3 ปีที่แล้ว +91

      Do you know i do chemistry for 12 hrs straight and failed in biology and physics lol.

    • @सम्राट-द6य
      @सम्राट-द6य 3 ปีที่แล้ว +93

      @@BigPPwhofckedyourmomWoW nothing new for jee advanced aspirants😂

    • @monsieurfabio
      @monsieurfabio 3 ปีที่แล้ว +4

      Studying at EPFL be like

    • @strangeranjan
      @strangeranjan 3 ปีที่แล้ว +6

      @@सम्राट-द6य are Bhai 😂

    • @Lovely_planet
      @Lovely_planet 3 ปีที่แล้ว +1

      recreationally at that!

  • @pikanoob
    @pikanoob 5 ปีที่แล้ว +9086

    "As we all know"
    no, i didnt

    • @hieukysu
      @hieukysu 5 ปีที่แล้ว +78

      heartbreaking but true :v

    • @thabomazibuko8723
      @thabomazibuko8723 5 ปีที่แล้ว +56

      I hate tht and when the teacher say it you fell bit stupid

    • @michaeln9844
      @michaeln9844 5 ปีที่แล้ว +72

      Teacher: We also know... Relating to trig identities we learned ages ago.
      Calc 2 student: WHAT?????

    • @ft_danielsetiawan9643
      @ft_danielsetiawan9643 4 ปีที่แล้ว +9

      you make me laugh haha

    • @ramshriram5356
      @ramshriram5356 4 ปีที่แล้ว +4

      Hello RedpenBluepen
      I think answer of question number 31 is little wrong. You missed '4' in multiplication.

  • @SZ-rz8hj
    @SZ-rz8hj ปีที่แล้ว +105

    Ive got a calc 2 final in a few days, this is super helpful so far
    pray for me yall, this final gonna hurt

  • @damienchim7653
    @damienchim7653 4 ปีที่แล้ว +3709

    Man it would be so much easier for him if he didn't need to explain while doing. Big respect

    • @davidgilbert737
      @davidgilbert737 3 ปีที่แล้ว +84

      I was going to say it would be easier if he had 100 different linear functions.

    • @maheshkumarsharma8543
      @maheshkumarsharma8543 3 ปีที่แล้ว +7

      But I think they are very simple calculas questions

    • @alecdombkowski5849
      @alecdombkowski5849 3 ปีที่แล้ว +1

      But he spent so much time on them

    • @nikhilnagaria2672
      @nikhilnagaria2672 3 ปีที่แล้ว

      @@fecesgenerator I realise it. Thank you.

    • @TrueSpeak-TS
      @TrueSpeak-TS 3 ปีที่แล้ว

      It shows that he understands everything crystal clear.

  • @ezequiel2940
    @ezequiel2940 5 ปีที่แล้ว +963

    The fact that you explained every step makes this video even cooler because this is also helpful to anyone who struggles with integrals. You're a God

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +25

      Castlenovo : ))))

    • @EssentialTurnip
      @EssentialTurnip 5 ปีที่แล้ว +1

      blackpenredpen finished cal 3 a year ago. This video is an amazing refresher!

    • @Ikram-yq7oz
      @Ikram-yq7oz 5 ปีที่แล้ว +3

      Its time to wake up Mr Freeman, smell the ashes

    • @ezequiel2940
      @ezequiel2940 5 ปีที่แล้ว

      @@Ikram-yq7oz We don't deserve to wait this long

    • @Snackjoker7
      @Snackjoker7 5 ปีที่แล้ว

      Yeah like it's understandable

  • @Itz_Terq
    @Itz_Terq 3 ปีที่แล้ว +3162

    The fact that he explained every integral with a detailed step by step rather than doing some of the steps in his head is crazy to me. Great job man, truly showing how math can be enjoyable

    • @2kmichaeljordan438
      @2kmichaeljordan438 3 ปีที่แล้ว +31

      He didn’t explain all of them, the middle part of the video he doesn’t talk a lot, and math just ain’t enjoyable. It’s frustrating if you don’t understand something, and even when you learn it, it only feels good for the moment you learn it, then it goes back to being a pain in the ass to do

    • @noxstar8140
      @noxstar8140 3 ปีที่แล้ว +56

      @@2kmichaeljordan438 that’s because people view math as a chore instead of having genuine interest in it, which isn’t really an issue since you can have other interests. People like the challenge of figuring out a difficult math problem and others don’t.

    • @johnbiluke8406
      @johnbiluke8406 3 ปีที่แล้ว +6

      ​@@noxstar8140 Indeed, it depends on the person like most fields.

    • @wtfimcrying
      @wtfimcrying 2 ปีที่แล้ว +8

      @@2kmichaeljordan438 no shit something will be frustrating if you dont understand it? i think you just dont have a vested interest in it.

    • @Z7youtube
      @Z7youtube 2 ปีที่แล้ว +1

      @@2kmichaeljordan438
      math is enjoyable, if u suck at it it’s not its problem, it’s yours + ofc anything u don’t understand will be frustrating not only math, and at the end of the day it depends on the person, everyone has his interest, not everyone will like and enjoy the same things

  • @jackbobby7268
    @jackbobby7268 2 ปีที่แล้ว +21

    for question 12 I used sub x=sin(u) and the sqrt(1-x^2) on the bottom cancels nicely with the derivative of sinu, cosu to just get the intergral of usinu which is simple by parts, but your solution was also very nice.

  • @Fire6
    @Fire6 5 ปีที่แล้ว +566

    The best thing about this guy is that he take the time to explain every steps of the calculation, that's amazing

  • @archithtelukunta4599
    @archithtelukunta4599 5 ปีที่แล้ว +363

    Other time stamps (26-61)[1-25 are in description]
    26. 1:29:48 integral of cos(sqrt x)
    27. 1:31:35 integral of cosec x
    28. 1:34:09 integral of sqrt(x^2+4x+13)
    29. 1:43:26 integral of e^2x*cosx
    30. 1:46:43 integral of (x-3)^9 from 3 to 5
    31. 1:49:32 integral of (x-x^(3/2))^-1/2
    32. 1:52:37 integral of (x-x^2)^-1/2
    33. 1:56:03 integral of e^(2lnx)
    34. 1:56:57 integral of lnx/sqrt x
    35. 2:00:32 integral of 1/e^x+e^-x
    36. 2:01:57 integral of logx base 2
    37. 2:05:15 integral of x^3*sin2x
    38. 2:08:32 integral of x^2[1+x^3]^1/3
    39. 2:12:30 integral of 1/(x^2 + 4)^2
    40. 2:19:38 integral of sqrt(x^2-1) from 1 to 2
    41. 2:27:29 integral of sinhx
    42. 2:28:50 integral of (sinhx)^2
    43. 2:32:53 integral of (sinhx)^3
    44. 2:35:03 integral of 1/sqrt(x^2 + 1)
    45. 2:36:34 integral of ln(x + sqrt(x^2 + 1)
    46. 2:39:23 integral of tanhx
    47. 2:40:59 integral of sechx
    48. 2:48:37 integral of tanh inverse of x
    49. 2:43:15 integral of sqrt(tanhx)
    50. 2:51:20 integral of [x] from 0 to 5
    51. 2:53:40 integral of (secx)^6
    52. 2:55:39 integral of 1/(5x-2)^4
    53. 2:57:11 integral of ln(1+x^2)
    54. 3:00:38 integral of 1/x^4+x
    55. 3:02:59 integral of (1-tanx)/1+tanx
    56. 3:04:54 integral of xsecxtanx
    57. 3:06:32 integral of sec inverse of x
    58. 3:11:13 integral of (1-cosx)/1+cosx
    59. 3:14:38 integral of x^2*sqrt(x+4)
    60. 3:18:18 integral of sqrt(4-x^2) from -1 to 1
    61. 3:24:57 integral of sqrt(x^2 + 4x)

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +28

      Wow, thank you!!!!!

    • @archithtelukunta4599
      @archithtelukunta4599 5 ปีที่แล้ว +17

      Will be a help for you always!:)

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +25

      GaMeR 123
      And I just put all your work in the description!

    • @archithtelukunta4599
      @archithtelukunta4599 5 ปีที่แล้ว +8

      blackpenredpen wow thank you!

    • @angelmendez-rivera351
      @angelmendez-rivera351 5 ปีที่แล้ว +1

      I compiled the time stamps from 26 to 101 (yes, I did include the secret) (sshhh XD)

  • @seaz_fm
    @seaz_fm 3 ปีที่แล้ว +1258

    I love the energy, u can see how he loves what he does. Respect

  • @ElenaDelgado_EarlyShow_EHS2024
    @ElenaDelgado_EarlyShow_EHS2024 2 ปีที่แล้ว +22

    He is one phenomenal teacher. I have been recently watching his videos and he has taught me things my teachers never did. Amazing teacher.

  • @sultanalmendahah6797
    @sultanalmendahah6797 4 ปีที่แล้ว +1343

    Am I the only one that's impressed by how fast he changes between markers.

    • @GodsNode
      @GodsNode 4 ปีที่แล้ว +19

      I've actually rewound it and tried to catch the technique to copy it. Like my Calc II skills...I am not there yet.

    • @avikrishna5029
      @avikrishna5029 4 ปีที่แล้ว +35

      His channel is literally called blackpenredpen

    • @sultanalmendahah6797
      @sultanalmendahah6797 4 ปีที่แล้ว +5

      Woah... here I'm month later getting my mind blown' again!

    • @johnisaaccalderon1621
      @johnisaaccalderon1621 4 ปีที่แล้ว

      @@avikrishna5029 Underrated

    • @kriti4698
      @kriti4698 4 ปีที่แล้ว +2

      @@GodsNode Even I tried and I think I'm almost there

  • @nikolasdugan
    @nikolasdugan 3 ปีที่แล้ว +3713

    it’s honestly such a wonderful thing to see that he is still liking comments to this day. that is so rare nowadays, i appreciate people like you and there’s needs to be more. ❤️

    • @blackpenredpen
      @blackpenredpen  3 ปีที่แล้ว +415

      I am very happy to hear nice comments like this. Thank you and best wishes to you.

    • @albertomilanesi9177
      @albertomilanesi9177 3 ปีที่แล้ว +42

      Omg he really is on time, less than an hour reaction

    • @man8918
      @man8918 3 ปีที่แล้ว +19

      what the fuck lmaooo bro gotta have a manager because there’s no way

    • @thePrivateJetSpot
      @thePrivateJetSpot 3 ปีที่แล้ว +5

      Amazing to see how many views its still getting u got 850 likes on this comment in 4 DAYS not counting how many saw your comment w/o liking it AND people who didnt even go to the comments. Hopefully math becomes cool again

    • @creatorzp
      @creatorzp 2 ปีที่แล้ว

      @@blackpenredpen wholesome

  • @tinhuydang
    @tinhuydang 2 ปีที่แล้ว +6219

    Y'all are impressed he's solving 100 integrals, I'm impressed how this man is standing for 6 hours straight

    • @LeLouis
      @LeLouis 2 ปีที่แล้ว +49

      We are not the same.

    • @yourcupoftea2151
      @yourcupoftea2151 2 ปีที่แล้ว +32

      im impressed how he switches his pens so fast

    • @Aiimsbilaspurmw
      @Aiimsbilaspurmw 2 ปีที่แล้ว +39

      You hadn't seen physics wallah teachers of India who stand for 10-11 hours for lecture.

    • @Annihillation
      @Annihillation 2 ปีที่แล้ว +7

      Yep! And talking, and teaching nicely, not just standing!

    • @andrewwupori6163
      @andrewwupori6163 2 ปีที่แล้ว +8

      Thats not really impressive. Most jobs require you to stand for 8+ hours, so the majority of the adult population do this 5 days a week.

  • @fedalhanoun9853
    @fedalhanoun9853 ปีที่แล้ว +12

    the way he switches between the black and red marker while solving is impressive

  • @hisyamlubis
    @hisyamlubis 5 ปีที่แล้ว +343

    why there's no one talkin' bout his marker switching skill?!?! magnificent.

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +11

      Hahaha, thank you!!!!

    • @lalo6580
      @lalo6580 5 ปีที่แล้ว

      OMG i thought i was the only who noticed that, i mean is really good such a fine domain.

  • @maxilos123456789
    @maxilos123456789 4 ปีที่แล้ว +2813

    this man really did 100 integrals, THEN HE DID 101. LEGENDARY

    • @blackpenredpen
      @blackpenredpen  4 ปีที่แล้ว +153

      Lol, thanks

    • @alainrogez8485
      @alainrogez8485 4 ปีที่แล้ว +35

      I don't know if he is a genius or a crazy man. Maybe both.

    • @kushaagrgupta105
      @kushaagrgupta105 4 ปีที่แล้ว +25

      These integrals are a piece of cake for jee aspirants. They can complete these 100 integrals in less than 2 hrs

    • @sigvegris7752
      @sigvegris7752 4 ปีที่แล้ว

      SPOILERS UGH!

    • @derrickmah3565
      @derrickmah3565 4 ปีที่แล้ว +62

      @@kushaagrgupta105 I mean they probably were easy for him too but he was explaining how to do them which is why it took so long

  • @CloroxBleach-gd4bz
    @CloroxBleach-gd4bz 5 ปีที่แล้ว +2261

    If I ever did this much math I would probably ascend to astral dimension

    • @MyshKatze
      @MyshKatze 5 ปีที่แล้ว +63

      He's levitating right now

    • @CloroxBleach-gd4bz
      @CloroxBleach-gd4bz 5 ปีที่แล้ว +81

      @@MyshKatze shit that's why I can't see his legs

    • @ladasodaexplains3355
      @ladasodaexplains3355 5 ปีที่แล้ว +29

      it's only 12th grade calc... (aka ap calc)

    • @ChefofWar33
      @ChefofWar33 5 ปีที่แล้ว +31

      @@ladasodaexplains3355 No. It is Calc 2.

    • @FastFactsVerse
      @FastFactsVerse 5 ปีที่แล้ว +2

      But bro I do

  • @yassinechritt8816
    @yassinechritt8816 2 ปีที่แล้ว +7

    respect man, only the elite can put this much dedication and effort into teaching.

  • @blackpenredpen
    @blackpenredpen  5 ปีที่แล้ว +495

    Dear Lars, I am sending my best wish to you. Get well soon!

    • @lional1010
      @lional1010 5 ปีที่แล้ว

      Lol BpRp

    • @yaleng4597
      @yaleng4597 5 ปีที่แล้ว +1

      OMG! Congraaaaaaaaaaaaaats!(100!times)

    • @vikasdeep6393
      @vikasdeep6393 5 ปีที่แล้ว +2

      Yeeee you are great person.....

    • @lional1010
      @lional1010 5 ปีที่แล้ว +1

      @@yaleng4597 heeeeeee 5 hour it is supercalifragilisticexpialidocious

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +4

      Muhammad Daghimen 6 : )

  • @billybobcreek1890
    @billybobcreek1890 3 ปีที่แล้ว +2663

    How could you dislike this video. This guy makes me so happy. The way he says how much he loves his gf and sends wishes to the guy battling cancer warms my heart. He is truly a magical mathematician, and a marvellous human being

    • @Ron-mq1fj
      @Ron-mq1fj 3 ปีที่แล้ว +16

      Probably because it was mediocre, no offense

    • @ryanlanny547
      @ryanlanny547 3 ปีที่แล้ว +7

      Just because you said that I'm disliking

    • @dadamj
      @dadamj 3 ปีที่แล้ว +20

      @@ryanlanny547 so brave. That'll learn him!

    • @unbound2424
      @unbound2424 3 ปีที่แล้ว +2

      If I had a gf I would love my life too

    • @NaimManiger
      @NaimManiger 3 ปีที่แล้ว +49

      @@Ron-mq1fj Was it? I’d like to see you try. So come on, give us an awe inspiring performance.

  • @shulamitp5412
    @shulamitp5412 4 ปีที่แล้ว +4550

    prof: "this exam is designed to only take 1 hour"
    the exam:

    • @cat1800
      @cat1800 3 ปีที่แล้ว +14

      Yeh he gave you 100 integrals?

    • @splashboi898
      @splashboi898 3 ปีที่แล้ว +23

      My teacher told us our integration test wouldnt take long, the whole damn class including me took the entire class time lmao.

    • @God-gi9iu
      @God-gi9iu 3 ปีที่แล้ว +1

      O

    • @lucian879
      @lucian879 3 ปีที่แล้ว +8

      @@crimsonnite9291 man, he is a Just a cat.
      He never see an human test

    • @xamtplays1933
      @xamtplays1933 3 ปีที่แล้ว +1

      thousandth like lmao

  • @prosperyouplaboum5826
    @prosperyouplaboum5826 ปีที่แล้ว +8

    Thank you. For the exercise 31 you've made -2*2=1; the response is -4*square(1-square(x)) + c. I think it's because tiredness. Anyway thank you for your work.

  • @yeeehees2973
    @yeeehees2973 5 ปีที่แล้ว +574

    This can also be a record for the longest time holding a microphone in one hand.

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +60

      Yeeehees no, bc I broke that record in my 100 series video. 😆

    • @maskedman8368
      @maskedman8368 4 ปีที่แล้ว +1

      @@blackpenredpen i wonder dosent your hand gets fixed in that position after that long

    • @kuldeepsingh189
      @kuldeepsingh189 3 ปีที่แล้ว +2

      *handgrenade

  • @adammckinley1306
    @adammckinley1306 2 ปีที่แล้ว +1169

    I love how he’s already figured out how to do the integral before he’s even finished writing it on the board, but he’s explains what he’s doing for our benefit. What a legend.

    • @thecrazzxz3383
      @thecrazzxz3383 2 ปีที่แล้ว +5

      Are you a Canadian english teacher ?

    • @SamSam-ed5lv
      @SamSam-ed5lv ปีที่แล้ว

      @@thecrazzxz3383you’ll never get your answer lol

    • @thecrazzxz3383
      @thecrazzxz3383 ปีที่แล้ว

      @@SamSam-ed5lv lol

    • @gianmarco1496
      @gianmarco1496 ปีที่แล้ว +4

      ​@@thecrazzxz3383bro is going to never have an answer

    • @mr.nobody9955
      @mr.nobody9955 ปีที่แล้ว

      still no answer@@thecrazzxz3383

  • @bastet113
    @bastet113 2 ปีที่แล้ว +1985

    i love the way he switches markers😂 i know it seems silly but it just shows how passionate and dedicated he is about this. he’s been doing it 4 so long!

    • @zun3945
      @zun3945 2 ปีที่แล้ว +17

      Yea ngl he switches his markers so fast i dont even notice until i see the ink on the whiteboard change colours

    • @user-xw4mu6nz4t
      @user-xw4mu6nz4t 2 ปีที่แล้ว +19

      This guy stands for 6 hours and you can't even be bothered spell "for" 😂😂

    • @cat000
      @cat000 2 ปีที่แล้ว +3

      black pen red pen

    • @unknownrealms8452
      @unknownrealms8452 ปีที่แล้ว

      ​@@user-xw4mu6nz4t th-cam.com/video/6gOzuZ3bA_I/w-d-xo.html
      th-cam.com/users/livezlC8QAG2mCc?feature=share
      th-cam.com/users/liveDjah0NdVJpg?feature=share
      What are your thoughts on it?
      800 fucking slides

  • @JonnyMath
    @JonnyMath 7 หลายเดือนก่อน +4

    This is by far the best maths video here on TH-cam!!! It's like a tough training session at the maths gym!!!🤩🤩🤩

  • @isaacwhyy
    @isaacwhyy 5 ปีที่แล้ว +2141

    His shirt ain't lying

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +110

      LOLLLLL

    • @Sidharth_V_Jain
      @Sidharth_V_Jain 4 ปีที่แล้ว +12

      I'm the second reply
      of a comment with 382 likes

    • @Marawan
      @Marawan 4 ปีที่แล้ว +7

      I'm the third reply to a comment of 438 likes

    • @f1shyspace
      @f1shyspace 4 ปีที่แล้ว +5

      I’m the fourth reply of a comment with 507 likes

    • @roylowe713
      @roylowe713 4 ปีที่แล้ว +3

      I'm the fifth reply of a comment with 545 likes

  • @kkiinn
    @kkiinn 5 ปีที่แล้ว +353

    the way he switches the markers is amazing

    • @jalepenopvp2300
      @jalepenopvp2300 5 ปีที่แล้ว +1

      I honestly didn’t notice until you pointed that out but I’m at now thoroughly distracted by it

    • @kkiinn
      @kkiinn 5 ปีที่แล้ว

      Isaac Stop its good to think outside the box

    • @khaledeid260
      @khaledeid260 5 ปีที่แล้ว +1

      Chopsticks 🍜

  • @CroizBR
    @CroizBR 5 ปีที่แล้ว +750

    is it just me impressed by the way he changes the colors ?

    • @esquared722
      @esquared722 5 ปีที่แล้ว +33

      the two markers in one hand technique lol

    • @oxey_
      @oxey_ 5 ปีที่แล้ว +49

      @@esquared722 That's just his lifelong experience with chopsticks being put to work

    • @mrsirman2177
      @mrsirman2177 5 ปีที่แล้ว +4

      Pretty cool, if I ever end up teaching something I'll use that technique

    • @manspider1833
      @manspider1833 5 ปีที่แล้ว +2

      ​@@esquared722 It's an ancient Chinese technique.

  • @rakeshravi3119
    @rakeshravi3119 ปีที่แล้ว +43

    Wow, this truly cuts deep. My father was a mathematician before his passing, and he always wanted me to become a great man with a prosperous future in math. Everyday I look forward to your videos as they give me memories of my father working late at night. Thank you.

    • @rakeshravi3119
      @rakeshravi3119 ปีที่แล้ว +2

      Wow, this is truly inspirational. I too have lost my mathematician father to cancer. Perhaps we can link.

    • @rakeshravi3119
      @rakeshravi3119 ปีที่แล้ว +2

      Same

    • @twa9342
      @twa9342 ปีที่แล้ว +1

      @@rakeshravi3119 If your story is true then I wish it's not true, if it's not true then I wish it's true

  • @carlosmatosfanpage2856
    @carlosmatosfanpage2856 5 ปีที่แล้ว +2592

    *Don’t even know what an integral is but this is cool*

    • @colinjava8447
      @colinjava8447 5 ปีที่แล้ว +105

      He's basically finding a function that when differentiated will give the integrand.

    • @carlosmatosfanpage2856
      @carlosmatosfanpage2856 5 ปีที่แล้ว +275

      Colin Java still dunno what that means xD

    • @Jason_Eissayou
      @Jason_Eissayou 5 ปีที่แล้ว +112

      Colin Java you just made it more confusing; to make it simple, the integral of acceleration is velocity

    • @colinjava8447
      @colinjava8447 5 ปีที่แล้ว +38

      @@Jason_Eissayou Yeah, that's one physical representation, not sure it helps in understand it though.

    • @colinjava8447
      @colinjava8447 5 ปีที่แล้ว +44

      @@carlosmatosfanpage2856 Well you know about curves (or functions) like y = x^2 that you can plot?
      Well you can integrate a function like x^2 and it will make a new function, namely (1/3)x^3.
      Then you can use this function to calculate the area under the curve between x=a and x=b and the x-axis.
      It would really help to understand the differentiation process first, since this is simpler and its actually the opposite process to integration, so they are fundamentally connected via the fundamental theorem of calculus.

  • @senorthiccman1102
    @senorthiccman1102 3 ปีที่แล้ว +782

    Man has got an arm of steel, he held that ball thing for like 6 hours. Literally cracked.

    • @glaciercodm4498
      @glaciercodm4498 3 ปีที่แล้ว +2

      How heavy is that

    • @typhoonslatt8189
      @typhoonslatt8189 3 ปีที่แล้ว +64

      @@glaciercodm4498 the mic is a blue snowball ice it’s pretty light but would not want to hold it for 6 hours😭props to this guy holding it for so long

    • @xvalue
      @xvalue 2 ปีที่แล้ว +4

      Holding your arm alone for that long would be difficult

    • @ananyshrivastava9181
      @ananyshrivastava9181 2 ปีที่แล้ว

      Golem is learning mathematics

  • @jagergaming2281
    @jagergaming2281 4 ปีที่แล้ว +456

    Can we just appreciate 1: this mans insane math skills, 2: the fact he has 2 markers in 1 hand while maintaining coherent writing, and 3: the fact he explains *every single problem* so well that my small brain can understand it.

    • @Haluna11
      @Haluna11 3 ปีที่แล้ว +22

      also holds the mic in the other hand for six hours

  • @sophiacho7891
    @sophiacho7891 ปีที่แล้ว +17

    I'm studying for a re-take of my calculus final that my professor was generous enough to provide. I'm extremely concerned because it's my last chance to get an A and I feel like this video is a great immersive way to make sure I've grounded every single method.
    Today is Day 2 of going through this video. I've done up to 20 questions so far. I'll be editing this comment to hold myself accountable. #5 was seriously a rough one, but even that problem was possible to solve with your step-by-step guidance. Thanks for everything, BPRP!
    Edit: I've made it up to 30 questions. I was really confident about #28 at first, but I had to watch the explanation several times to actually understand it. Are we just supposed to memorize when sec^3(theta) is integrated into and then replace those values by returning to the "x world"? A bit confusing, but memorization of an equation is no problem. We'll see how it goes tomorrow. (Could someone tell me HOW BPRP knew to write sin at 1:55:24 ? That means that he put "u" as cosine, right? Because the sqrt (1 - cos^2x) = sin x. But how did he decide to set "u" equal to cos and thus, get sin (or inverse sin, I guess) in his final answer?
    Edit: We've made it all the way to 46 questions and although I'm so close to the halfway mark, I can't bring myself to do another integral. Again, BPRP is amazing! I hadn't solved sinh(x) and cosh(x) questions in a long time so this was a really good refresher. Also, #40 was so challenging and I can't believe that someone would CREATE and SOLVE it voluntarily. I have no words. We will pass halfway tomorrow!!
    Edit: Today is a review day. I've made it to 50 and now, I'm going to attempt 1~25 on my own- without any help unless I really need it. #48, 49, and 50 were incredibly thorough. I don't think that we will be tested on tanh(x) or sech(x) questions, but since they're included in this video, I feel prepared. Honestly, I've only done halfway and I had a span of 5 days. It's crazy how BPRP did of this in roughly six hours.
    Edit: We've made it to 63. Not gonna lie, I'm getting pretty sick of integrals. I feel like 60 should be plenty of practice and I'm not exactly sure why I'm putting myself through this. We will try to push to 70 tomorrow. Yeesh.
    We made it to 70. I feel like giving up now would be pathetic, so I'll keep going. But I am really not enjoying this anymore. Regardless, there are some individual questions that are exciting. I remembered the double angle formula for #68 (around 4:01:00) and it was exciting to be able to solve that one on my own. Tomorrow is my parent's anniversary so I may be busy, but let's aim for 80 !! Agh, almost done
    Done with 80! To be honest, #72 was quite beautiful to solve, but the rest were painful. Looking forward to being done!!!!
    Done with 90- we'll be completely finished tomorrow. Can't wait. My stamina needs work :/
    FINISHED WITH 100 !!! (Ah I forgot to update) My final is partially going to be on series + finding the radius/interval of convergence as well as integrals, so I've been practicing the 100 series video + other tutorials on TH-cam. MIT OpenCourseWare has been a great tool for critical comprehension. I have a bit less than a week until my test, so during the last few days, I'll be making practice exams for myself and solving them in a timed environment. Until then, I'll keep doing 10-20 practice problems per day. (I seldom prepare this far in advance nor this thoroughly for a test, but honestly this is teaching me great learning habits! Perhaps I'll apply this to my classes during the approaching school year. )
    I'll update this comment on how the actual test goes !
    The retake went alright! To be completely honest, I didn't get the score I was looking for. I was looking for a 100 so it's a bit shameful to say, but I nearly fucked up again. However, I got a score that was just a few points above the good-enough standard and my grade improved, so I was able to take Linear Algebra this semester and I enjoyed it a lot. (It's way more abstract.. yet easier than Calc II to grasp in my opinion. The applications are a lot more concrete.) Thanks, BPRP :) You're one of the few people who prevent me from entirely despising math.

    • @caio757
      @caio757 ปีที่แล้ว

      with your dedication I hope it passes

    • @electrickin
      @electrickin ปีที่แล้ว +2

      how did the final go?

    • @uxoy
      @uxoy 11 หลายเดือนก่อน

      how'd it go?

  • @non-inertialobserver946
    @non-inertialobserver946 5 ปีที่แล้ว +3716

    When mom says you can watch one more video before going to bed

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +132

      ViperDaniel hahahahha

    • @jackiekwan
      @jackiekwan 5 ปีที่แล้ว +14

      I was thinking of the same thing YAY

    • @simohayha6031
      @simohayha6031 5 ปีที่แล้ว +10

      The entire tournament of power

    • @netstatgrep
      @netstatgrep 5 ปีที่แล้ว +15

      But we're studying, right?

    • @aman_xo
      @aman_xo 5 ปีที่แล้ว +19

      My dad says not to copy old jokes.

  • @troyhildan5096
    @troyhildan5096 4 ปีที่แล้ว +587

    His goal : Claiming a world record
    What he ended up doing : Teaching me how to integrate quickly

    • @Praveen-zq8ox
      @Praveen-zq8ox 3 ปีที่แล้ว +1

      Did you watched the whole video, speak truth

    • @aizenisplanning
      @aizenisplanning 3 ปีที่แล้ว +3

      @@Praveen-zq8ox I did!

    • @aravinds3846
      @aravinds3846 3 ปีที่แล้ว +1

      It’s not a world record tho. Many Indian and Chinese and Korean students do tougher integrals of the same number in less than half the time .

    • @alncdr
      @alncdr 3 ปีที่แล้ว +19

      @@aravinds3846 well they don't explain everything for viewers tho

    • @ik6882
      @ik6882 3 ปีที่แล้ว

      @@alncdr there’s no need to most of the time

  • @s99902
    @s99902 2 ปีที่แล้ว +764

    My man not only done 100 integrals in 6 hours but he held his mic in his hand the entire time, true goat.

    • @aaaaaa-rr8xm
      @aaaaaa-rr8xm 2 ปีที่แล้ว +12

      Greatest Of All Time !!!

    • @studybuddy7060
      @studybuddy7060 ปีที่แล้ว +3

      true goat, but what about the goatee?

    • @user-amanfeildconvecture
      @user-amanfeildconvecture ปีที่แล้ว

      ​@@studybuddy7060😂

    • @user-amanfeildconvecture
      @user-amanfeildconvecture ปีที่แล้ว

      ​@@studybuddy7060well played

    • @unknownrealms8452
      @unknownrealms8452 ปีที่แล้ว

      th-cam.com/video/6gOzuZ3bA_I/w-d-xo.html
      th-cam.com/users/livezlC8QAG2mCc?feature=share
      th-cam.com/users/liveDjah0NdVJpg?feature=share

  • @willywrld
    @willywrld ปีที่แล้ว +4

    This is probably one of the most insane video have seen on this platform. Shout out to you bro👏🙌

  • @tilakchander2444
    @tilakchander2444 5 ปีที่แล้ว +126

    Support from India..... I did all the sums with you!!! Felt great! 10 Am-4 PM!!!!

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +10

      Tilak Chan nice!!!!!

    • @va11bhav_rana
      @va11bhav_rana 4 ปีที่แล้ว +1

      Wow nice dude

    • @inspiredbyself3798
      @inspiredbyself3798 4 ปีที่แล้ว +4

      @@va11bhav_rana Nice name..😂😂

    • @donebro4403
      @donebro4403 4 ปีที่แล้ว +2

      I also finished all sums with my friends and it takes 5 hours working hard for jee 😌

  • @gibwegian6361
    @gibwegian6361 5 ปีที่แล้ว +414

    Doctor: “You have 5 hours 50 minutes and 22 seconds left to live... Use it wisely”
    Me:

  • @blankblank103
    @blankblank103 5 ปีที่แล้ว +389

    When you cram the entire set of past exam problems the night before an exam

  • @Alkane2
    @Alkane2 7 ชั่วโมงที่ผ่านมา

    Today i finish the whole video with you. I solve the problem by myself at first,then followed u. Thank you for being with me.

  • @MathIguess
    @MathIguess 5 ปีที่แล้ว +348

    At around 3:00:10 you asked how I am doing
    Man, it's been a rough couple of weeks. It feels like the university doesn't wanna test what I know, but instead they wanna see if they can catch me out on things I don't know well enough. It's overwhelming and difficult to stay ahead of the workload, but I'm staying positive and doing my best all the way. They'll never get me down. Thank you for asking.
    How are you doing?

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +80

      Werner Steyn wow you are the first one who actually noticed that part!! Thank you.
      Yes, just like you said, stay positive. Keep putting in the effort and I wish you a successful semester!

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +67

      Werner Steyn btw, I am doing well right now too. Thanks.

    • @MathIguess
      @MathIguess 5 ปีที่แล้ว +14

      @John Porter that's amazing, man! Keep it up! :D

  • @LegonTW0
    @LegonTW0 4 ปีที่แล้ว +1985

    -Who is the most beautiful woman in your life?
    -My mom
    -...
    - 4:30:30

    • @blackpenredpen
      @blackpenredpen  4 ปีที่แล้ว +176

      Lolllll

    • @tylparys
      @tylparys 4 ปีที่แล้ว +26

      HAHAHAHAHA LOL

    • @carnationjazz
      @carnationjazz 4 ปีที่แล้ว +22

      HAHAHAHAHAHA SHITS FKING HILARIOUS

    • @ayhamnaser1089
      @ayhamnaser1089 4 ปีที่แล้ว +9

      i really laughed at that one

    • @captainyokovick4647
      @captainyokovick4647 4 ปีที่แล้ว +8

      @@blackpenredpen hey T-series beat pewdiepie 😁

  • @laapapapa6388
    @laapapapa6388 5 ปีที่แล้ว +142

    My maths teacher failed to teach me integrals during a six-week course but you did it in less than six hours!

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +11

      : )))))))

    • @hazard2026
      @hazard2026 5 ปีที่แล้ว +6

      @@blackpenredpen thats a lot of chins bro.

  • @nihals-edu-vlog800
    @nihals-edu-vlog800 ปีที่แล้ว +2

    Successfully completed solving 100 integral ..10 each day ....Got lot to learn and practice....Thank u so much for this fabulous content of math!

  • @jelly.cherry
    @jelly.cherry 5 ปีที่แล้ว +3049

    "You only have 6 hours left before the integral exam!"
    *watches this video

    • @szwos
      @szwos 4 ปีที่แล้ว +20

      literally me rn

    • @majncriftgamapleys9928
      @majncriftgamapleys9928 4 ปีที่แล้ว +19

      That's actually clever af

    • @Rubenlousada
      @Rubenlousada 4 ปีที่แล้ว +3

      @@szwos how did it go? ahahha

    • @B0900-o7c
      @B0900-o7c 4 ปีที่แล้ว +2

      thats me

    • @aymenninja8120
      @aymenninja8120 4 ปีที่แล้ว +5

      none of them helped me unfortunatelly :'(

  • @saeedf2690
    @saeedf2690 3 ปีที่แล้ว +892

    This guy is representing my parent imaginations of me before I was born.

  • @Slim_rev-bp6ki
    @Slim_rev-bp6ki 3 ปีที่แล้ว +649

    I ACTUALLY UNDERSTAND WHAT HES DOING :)))). I tried watching this last year prior to taking calc 1, but since i already took it, i understand now. THIS IS ACTUALLY KINDA FUN TO WATCH!

    • @blackpenredpen
      @blackpenredpen  3 ปีที่แล้ว +75

      Glad to hear!! Thanks.

    • @dylanr4854
      @dylanr4854 3 ปีที่แล้ว +9

      Same lol I learned about integrals a few days ago

    • @parvaraval4339
      @parvaraval4339 3 ปีที่แล้ว +6

      Add me in the list :~)

    • @diamondpi4121
      @diamondpi4121 3 ปีที่แล้ว +5

      i haven't done my Calc1 and i understand it because he is just too good at teaching.

    • @thereals8nt23
      @thereals8nt23 3 ปีที่แล้ว +1

      I’m taking Calc 2 right now and it’s quite entertaining watching this

  • @JorgeGeorgeD
    @JorgeGeorgeD ปีที่แล้ว +40

    I miss one class.
    My professor:

  • @verynice558
    @verynice558 5 ปีที่แล้ว +1352

    Guess we found a new challenge for Mr. Beast

    • @erikburzinski8248
      @erikburzinski8248 5 ปีที่แล้ว +82

      $100,000 to witch ever of his friends can do 100 integrals correctly first

    • @turf6863
      @turf6863 5 ปีที่แล้ว +5

      BPRP is probably his friends.

    • @joeyGalileoHotto
      @joeyGalileoHotto 5 ปีที่แล้ว +59

      He's too dumb to understand Calculus

    • @oguzkaanylmaz4571
      @oguzkaanylmaz4571 5 ปีที่แล้ว +2

      We all know it's not gonna happen.

    • @chairjacker
      @chairjacker 5 ปีที่แล้ว +1

      It's gonna happen!

  • @Antigoneofthebes
    @Antigoneofthebes 5 ปีที่แล้ว +197

    He has ascended to the level of math god

  • @peeper2070
    @peeper2070 4 ปีที่แล้ว +443

    2:18 ok you lost me at this part

    • @nvyash
      @nvyash 4 ปีที่แล้ว +8

      😂😂 Most Underrated comment..! .
      You got humor dude.! 🔥

    • @attamirza2602
      @attamirza2602 4 ปีที่แล้ว +5

      HAHAHHAHAHA

    • @laze_amvs424
      @laze_amvs424 4 ปีที่แล้ว +1

      2 mins in 😂

    • @peeper2070
      @peeper2070 3 ปีที่แล้ว

      1 year on and I’ve learnt basic integration (x^n, n is not -1) at school

    • @peeper2070
      @peeper2070 3 ปีที่แล้ว +1

      18 months on and I can do almost all of these (but I’ve learnt enough to know how to do all of them)

  • @coyoteden8111
    @coyoteden8111 ปีที่แล้ว +3

    2:18:15 - "We are all adults now, so we don't have to worry about square roots on the denominator."
    I felt that. Thank u

  • @londonisboss52
    @londonisboss52 3 ปีที่แล้ว +179

    This is someone who truly loves what they teach, spends nearly 6 hours straight solving integrals and explaining each step for each one

  • @hamzarefik7779
    @hamzarefik7779 5 ปีที่แล้ว +431

    the original record is of holding microphone for 6 hours

  • @TheTurtleOfGods
    @TheTurtleOfGods 4 ปีที่แล้ว +53

    There's so many good moments in this video. He asks how I'm doing, checks up and says the video is for Lars numerous times, just what a nice guy overall. Actually watching this video over the course of a week lord help me...

  • @search_continue
    @search_continue 10 หลายเดือนก่อน +1

    39:48 simple method :
    Put sin^-1 (x) =t
    Diff. 1/√(1-x^2) dx =dt
    Our question integration sint t dt
    Then by parts

  • @oojikarasuma1
    @oojikarasuma1 5 ปีที่แล้ว +270

    Differentiation is applying the right rules but integration is an art.

    • @samud7041
      @samud7041 5 ปีที่แล้ว

      😊😊😊😊😊🤭🤭🤭

    • @dogetastic2846
      @dogetastic2846 5 ปีที่แล้ว

      @@samud7041 🗿

  • @IWishIHadA964
    @IWishIHadA964 4 ปีที่แล้ว +551

    "Okay, good practice, now i'll start the recording"

  • @kekecom
    @kekecom 5 ปีที่แล้ว +550

    3:36:12 “so, take a look”’... just for 1 second, like my teacher.

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +51

      Kekecom Morhax hahahahaha. But you can pause the video within that second :))))

    • @santosjustinkiand.5964
      @santosjustinkiand.5964 5 ปีที่แล้ว +1

      HAHAHHAHHAA RELATABLE HAHAHHAHAHHAA

    • @jasp9661
      @jasp9661 5 ปีที่แล้ว +14

      You watched 3 hours and 36 minutes in ???

    • @Jpolos
      @Jpolos 5 ปีที่แล้ว +3

      @@jasp9661 I'm on the 4th

    • @Hawilabas
      @Hawilabas 5 ปีที่แล้ว +6

      "Now, quiz time"

  • @xlr8_bs514
    @xlr8_bs514 2 หลายเดือนก่อน +1

    I am not a big Math guy and do not get much time to practice. So I appreciate you solving them while explaining it. Helps us a ton!

  • @blackpenredpen
    @blackpenredpen  5 ปีที่แล้ว +18866

    Fun fact: the uploading time for this was 12 hours.
    Support this channel and get my notes on Patreon: www.patreon.com/posts/files-to-my-100-95153770?

    • @vonneumann3592
      @vonneumann3592 5 ปีที่แล้ว +1394

      blackpenredpen It is not a fun fact any more.
      It is a "integral" fact of the uploading video

    • @indicgamer2907
      @indicgamer2907 5 ปีที่แล้ว +91

      Oooo

    • @aurithrabarua4698
      @aurithrabarua4698 5 ปีที่แล้ว +341

      Oh, actually TH-cam also took its time to figure out "What the hell it is!!!"

    • @6612770
      @6612770 5 ปีที่แล้ว +262

      Twelve hours is a totally ridonculous amount of time!
      It should have been -1/12 hours...

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +278

      Brain it on! Lol nice

  • @nickdigregorio6049
    @nickdigregorio6049 3 ปีที่แล้ว +546

    can’t thank you enough man you’re truly a blessing. if all math professors had this same level of dedication to teaching their students math would almost be easy. thank you for all your hard work boss we appreciate it!

    • @blackpenredpen
      @blackpenredpen  3 ปีที่แล้ว +45

      I am very happy to hear this. Thank you!

    • @johnbiluke8406
      @johnbiluke8406 3 ปีที่แล้ว +15

      As you go higher in mathematics, difficulty becomes inevitable, but the degree of severity can be lowered with a dedicated teacher like this fellow.

    • @NONAME-pf7ue
      @NONAME-pf7ue 2 ปีที่แล้ว +1

      No it's not

  • @MagnusSkiptonLLC
    @MagnusSkiptonLLC 5 ปีที่แล้ว +568

    Easy mode, put video on 0.25x and try to beat him.
    Normal mode, put on 1x
    Hard mode: 2x

    • @erikburzinski8248
      @erikburzinski8248 5 ปีที่แล้ว +1

      Good idea

    • @catbot8673
      @catbot8673 5 ปีที่แล้ว +20

      Not really hard cus he explains everything

    • @catbot8673
      @catbot8673 5 ปีที่แล้ว +6

      @Andrew Wu well I mean he still takes time to explain things so if you were to do it without talking its faster

    • @jadenlewis5782
      @jadenlewis5782 5 ปีที่แล้ว +9

      I mean if you beat him at 2x (u really won't) why not record for the record

    • @pmz558
      @pmz558 5 ปีที่แล้ว

      beast mode:3x

  • @sanidhyapanchal203
    @sanidhyapanchal203 3 หลายเดือนก่อน +2

    * 00:00:33 - Question #1: Integrate tan^5(x) * sec^3(x) dx
    * 00:13:45 - Question #2: Integrate cos(2x)/(sin(x) + cos(x)) dx
    * 00:18:40 - Question #3: Integrate (x^2 + 1)/(x^4 - x^2 + 1) dx
    * 00:34:23 - Question #4: Integrate x * sin^2(x) dx
    * 00:45:13 - Question #5: Integrate 1/(sin^4(x) - 2sin^2(x)cos^2(x) + cos^4(x)) dx
    *01:04:00 - Question #6: Integrate sin(x)/sqrt(1 + cos^2(x)) dx
    *01:12:16 - Question #7: Integrate sin^3(x)cos^4(x) dx
    *01:20:00 - Question #8: Integrate e^xsin(x) dx
    *01:25:00 - Question #9: Integrate arctan(x) dx
    *01:30:00 - Question #10: Integrate x/(1 + x^2)^2 dx
    *01:34:00 - Question #11: Integrate sin^4(x) dx
    *01:38:00 - Question #12: Integrate cos^5(x) dx
    *01:42:00 - Question #13: Integrate tan^3(x)sec^4(x) dx
    *01:46:00 - Question #14: Integrate sin^2(x)cos^3(x) dx
    *01:50:00 - Question #15: Integrate tan^4(x) dx
    *01:54:00 - Question #16: Integrate sec^5(x) dx
    *01:58:00 - Question #17: Integrate tan^3(x)sec^3(x) dx
    *02:02:00 - Question #18: Integrate sin^5(x)cos^2(x) dx
    *02:06:00 - Question #19: Integrate tan^2(x)sec^2(x) dx
    *02:10:00 - Question #20: Integrate sec^3(x) dx
    *2:14:00 - Question #21: Integrate tan^5(x)sec^4(x) dx
    *2:18:00 - Question #22: Integrate sin^4(x)cos^4(x) dx
    *2:22:00 - Question #23: Integrate tan^3(x)sec^5(x) dx
    *2:26:00 - Question #24: Integrate sin^3(x)cos^5(x) dx
    *2:30:00 - Question #25: Integrate tan^2(x)sec^4(x) dx
    *2:34:00 - Question #26: Integrate sec^4(x) dx
    *2:38:00 - Question #27: Integrate tan^3(x)sec^6(x) dx
    *2:42:00 - Question #28: Integrate sin^2(x)cos^6(x) dx
    *2:46:00 - Question #29: Integrate tan^2(x)sec^6(x) dx
    *2:50:00 - Question #30: Integrate sec^6(x) dx
    *2:54:00 - Question #31: Integrate tan^3(x)sec^7(x) dx
    *2:58:00 - Question #32: Integrate sin^2(x)cos^7(x) dx
    *3:02:00 - Question #33: Integrate tan^2(x)sec^7(x) dx
    *3:06:00 - Question #34: Integrate sec^7(x) dx
    *3:10:00 - Question #35: Integrate tan^3(x)sec^8(x) dx
    * 03:14:00 - Question #36: Integrate tan^3(x)sec^9(x) dx
    * 03:18:00 - Question #37: Integrate sin^2(x)cos^8(x) dx
    * 03:22:00 - Question #38: Integrate tan^2(x)sec^8(x) dx
    * 03:26:00 - Question #39: Integrate sec^8(x) dx
    * 03:30:00 - Question #40: Integrate tan^3(x)sec^10(x) dx
    * 03:34:00 - Question #41: Integrate sin^2(x)cos^9(x) dx
    * 03:38:00 - Question #42: Integrate tan^2(x)sec^9(x) dx
    * 03:42:00 - Question #43: Integrate sec^9(x) dx
    * 03:46:00 - Question #44: Integrate tan^3(x)sec^11(x) dx
    * 03:50:00 - Question #45: Integrate sin^2(x)cos^10(x) dx
    * 03:54:00 - Question #46: Integrate tan^2(x)sec^10(x) dx
    * 03:58:00 - Question #47: Integrate sec^10(x) dx
    * 04:02:00 - Question #48: Integrate tan^3(x)sec^12(x) dx
    * 04:06:00 - Question #49: Integrate sin^2(x)cos^11(x) dx
    * 04:10:00 - Question #50: Integrate tan^2(x)sec^11(x) dx
    * 04:14:00 - Question #51: Integrate sec^11(x) dx
    * 04:18:00 - Question #52: Integrate tan^3(x)sec^13(x) dx
    * 04:22:00 - Question #53: Integrate sin^2(x)cos^12(x) dx
    * 04:26:00 - Question #54: Integrate tan^2(x)sec^12(x) dx
    * 04:30:00 - Question #55: Integrate sec^12(x) dx
    * 04:34:00 - Question #56: Integrate tan^3(x)sec^14(x) dx
    * 04:38:00 - Question #57: Integrate sin^2(x)cos^13(x) dx
    * 04:42:00 - Question #58: Integrate tan^2(x)sec^13(x) dx
    * 04:46:00 - Question #59: Integrate sec^13(x) dx
    * 04:50:00 - Question #60: Integrate tan^3(x)sec^15(x) dx
    * 04:54:00 - Question #61: Integrate sin^2(x)cos^14(x) dx
    * 04:58:00 - Question #62: Integrate tan^2(x)sec^14(x) dx
    * 05:02:00 - Question #63: Integrate sec^14(x) dx
    * 05:06:00 - Question #64: Integrate tan^3(x)sec^16(x) dx
    * 05:10:00 - Question #65: Integrate sin^2(x)cos^15(x) dx
    * 05:14:00 - Question #66: Integrate tan^2(x)sec^15(x) dx
    * 05:18:00 - Question #67: Integrate sec^15(x) dx
    * 05:22:00 - Question #68: Integrate tan^3(x)sec^17(x) dx
    * 05:26:00 - Question #69: Integrate sin^2(x)cos^16(x) dx
    * 05:30:00 - Question #70: Integrate tan^2(x)sec^16(x) dx
    * 05:34:00 - Question #71: Integrate sec^16(x) dx
    * 05:38:00 - Question #72: Integrate tan^3(x)sec^18(x) dx
    * 05:42:00 - Question #73: Integrate sin^2(x)cos^17(x) dx
    * 05:46:00 - Question #74: Integrate tan^2(x)sec^17(x) dx
    * 05:50:00 - Question #75: Integrate sec^17(x) dx
    * 05:54:00 - Question #76: Integrate tan^3(x)sec^19(x) dx
    * 05:58:00 - Question #77: Integrate sin^2(x)cos^18(x) dx
    * 06:02:00 - Question #78: Integrate tan^2(x)sec^18(x) dx
    * 06:06:00 - Question #79: Integrate sec^18(x) dx
    * 06:10:00 - Question #80: Integrate tan^3(x)sec^20(x) dx
    * 06:14:00 - Question #81: Integrate sin^2(x)cos^19(x) dx
    * 06:18:00 - Question #82: Integrate tan^2(x)sec^19(x) dx
    * 06:22:00 - Question #83: Integrate sec^19(x) dx
    * 06:26:00 - Question #84: Integrate tan^3(x)sec^21(x) dx
    * 06:30:00 - Question #85: Integrate sin^2(x)cos^20(x) dx
    * 06:34:00 - Question #86: Integrate tan^2(x)sec^20(x) dx
    * 06:38:00 - Question #87: Integrate sec^20(x) dx
    * 06:42:00 - Question #88: Integrate tan^3(x)sec^22(x) dx
    * 06:46:00 - Question #89: Integrate sin^2(x)cos^21(x) dx
    * 06:50:00 - Question #90: Integrate tan^2(x)sec^21(x) dx
    * 06:54:00 - Question #91: Integrate sec^21(x) dx
    * 06:58:00 - Question #92: Integrate tan^3(x)sec^23(x) dx
    * 07:02:00 - Question #93: Integrate sin^2(x)cos^22(x) dx
    * 07:06:00 - Question #94: Integrate tan^2(x)sec^22(x) dx
    * 07:10:00 - Question #95: Integrate sec^22(x) dx
    * 07:14:00 - Question #96: Integrate tan^3(x)sec^24(x) dx
    * 07:18:00 - Question #97: Integrate sin^2(x)cos^23(x) dx
    * 07:22:00 - Question #98: Integrate tan^2(x)sec^23(x) dx
    * 07:26:00 - Question #99: Integrate sec^23(x) dx
    * 07:30:00 - Question #100: Integrate tan^3(x)sec^25(x) dx
    Proof that I am a man

  • @skivvytv6229
    @skivvytv6229 5 ปีที่แล้ว +535

    watched the whole thing.
    still don't know how to calculate Integrals

  • @drpeyam
    @drpeyam 5 ปีที่แล้ว +333

    OMGGGGG, this is insane, I wish I could like this over 100 times 😍😍😍

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +12

      Dr Peyam thank you!!!!!!

    • @dharmanshah1239
      @dharmanshah1239 5 ปีที่แล้ว +7

      Ofcourse you can like it 100 times!!Sad it'll count only one...

    • @allthesesnitches4465
      @allthesesnitches4465 5 ปีที่แล้ว +4

      @@dharmanshah1239 Only if you don't have 100 accounts😂

    • @wencailiu6200
      @wencailiu6200 5 ปีที่แล้ว +1

      Haha, I am here to check the video.

    • @karangupta4978
      @karangupta4978 5 ปีที่แล้ว +2

      Of course, you can like it as many times as you want. Just make sure it's an odd number ;)

  • @skrt1735
    @skrt1735 3 ปีที่แล้ว +157

    The fact that he explains every calculation , is just insane

  • @gruesomedevil5062
    @gruesomedevil5062 2 ปีที่แล้ว +3

    this was probably the first time I was smiling while doing math.... ur smile is contagious man .... loved it

  • @salt7211
    @salt7211 2 ปีที่แล้ว +543

    I never thought I could learn so much in such little time. Gifted teacher, thanks for the dedication. Legend for explaining everything.

    • @blackpenredpen
      @blackpenredpen  2 ปีที่แล้ว +54

      Glad to hear! Thank you!!

    • @nemanjalazarevic9249
      @nemanjalazarevic9249 2 ปีที่แล้ว +6

      A LEGEND HAS RETURNED

    • @dad-ms8mz
      @dad-ms8mz ปีที่แล้ว +5

      Nooo u didn't learn anything. You just came to know.
      Practice this question 2 times. + 50 different questions of similar type. Then u will learn.

    • @smallfry7304
      @smallfry7304 ปีที่แล้ว +1

      @@dad-ms8mz im 14 and this is deep

    • @dad-ms8mz
      @dad-ms8mz ปีที่แล้ว +1

      @@smallfry7304 I like deep.😃😅

  • @ryanplanes
    @ryanplanes 5 ปีที่แล้ว +46

    You've become a talking point in my college maths department for tge incredible stuff you do.

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +6

      Aww thank you!!!

    • @ryanplanes
      @ryanplanes 5 ปีที่แล้ว +2

      @@blackpenredpen Incredible video by the way!

  • @theraytech54
    @theraytech54 5 ปีที่แล้ว +426

    Student: How to do this integral please ?
    blackpenredpen: Just watch my 6 hours long video, it must be somewhere in it

  • @Danieleverettg
    @Danieleverettg ปีที่แล้ว +2

    For question 59 (3:14:33), I tried integration by parts and I got the same answer. It is probably slower but it's the first thing I thought of. When I did this, I got (2/3)*x^2*(x+4)^(3/2) - (8/15)*x*(x+4)^(5/2) + (16/105)*(x+4)^(7/2)+C which desmos says is the same answer. Love the vids ❤️

    • @Danieleverettg
      @Danieleverettg ปีที่แล้ว

      Personal timestamp: 4:14:10
      4:31:35

  • @ajitgupta3045
    @ajitgupta3045 5 ปีที่แล้ว +138

    Much love from India sir just because of this video I scored 147/150 in integration test the scariest topic became so easy thnx

  • @kensation1
    @kensation1 4 ปีที่แล้ว +2357

    Imagine if he forgot to hit the record button

    • @prakharvermaT1nO
      @prakharvermaT1nO 4 ปีที่แล้ว +21

      lmao true but im pretty sure he made sure he did this type of video is prolly something that he would care a lot about.

    • @pitter6282
      @pitter6282 4 ปีที่แล้ว +2

      That probably hard ataq

    • @yousifkhalil9655
      @yousifkhalil9655 4 ปีที่แล้ว +10

      Who said that this was his first time solving 100 integrals 🙃

    • @viralmemes_4u
      @viralmemes_4u 4 ปีที่แล้ว +4

      Ooh u negative vibe😑

    • @henoktadesse8070
      @henoktadesse8070 3 ปีที่แล้ว +6

      maybe he did forget and recorded the video again lmao

  • @dancibotaru6613
    @dancibotaru6613 5 ปีที่แล้ว +762

    someone : so, what do you eat every morning ?
    me : a bowl of cereals
    this guy : a bowl of integrals

  • @littyfam5136
    @littyfam5136 ปีที่แล้ว +3

    3:23:52 you could just note that the rest of the area is exactly 1/12 the area of a circle with radius 2, leading the area formula to be 1/12 (π*2^2)

  • @barrowmeoct04
    @barrowmeoct04 4 ปีที่แล้ว +35

    This is the first time in 2 years that I'm actually starting to 'think' when solving integrals. Up to recently it was just a kind of 'go with the momentum' way of solving, or a painting by numbers style where I was going by purely the 'standard' way of approaching simpler integrals, which often led to walking into dead ends. Now I'm actually trying to see how to approach things thanks to watching your thought process. And it has started to work because, going into my lecture handouts I'm able to solve a lot of the integrals much more easily than before and I'm actually aware of 'why' I'm choosing a particular strategy.
    I know I 'rant' but I can't thank you enough for how much this is helping me. I was losing my mind and now I've started to enjoy this subject again and the magic of maths is returning.

  • @nadeemm429
    @nadeemm429 4 ปีที่แล้ว +258

    1. Imagine if he forgot to hit record
    2. HOW DID HE HOLD THE MIC LIKE THAT FOR 6 HOURS STRAIGHT

    • @windyjay4627
      @windyjay4627 3 ปีที่แล้ว +5

      he never skipped arm day

  • @matthewho1964
    @matthewho1964 5 ปีที่แล้ว +290

    I can also do 100 integrals....of e^x.

    • @Anton0rast
      @Anton0rast 5 ปีที่แล้ว +32

      dy

    • @raneemdroid1107
      @raneemdroid1107 5 ปีที่แล้ว +2

      LMAO same

    • @rigiggarcia8237
      @rigiggarcia8237 5 ปีที่แล้ว +7

      Damn I can only take derivative of e^x 😕😕 Integrals are tough

    • @zachp2389
      @zachp2389 5 ปีที่แล้ว +1

      Make it 1000

  • @mrwest9840
    @mrwest9840 ปีที่แล้ว +3

    Now I'm in 12th and after 4 year old video in my 📱 thank you very much for your support

  • @AlexDanut
    @AlexDanut 5 ปีที่แล้ว +234

    This guy is the asian Bob Ross of calculus

  • @vivic2939
    @vivic2939 5 ปีที่แล้ว +212

    5:02:19
    THIS IS WORTH THE ENTIRE VIDEO

    • @mohamedbenz8227
      @mohamedbenz8227 5 ปีที่แล้ว +1

      xDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

    • @zachmoir
      @zachmoir 5 ปีที่แล้ว

      Omy

  • @blackpenredpen
    @blackpenredpen  5 ปีที่แล้ว +692

    Here are the time stamps:
    [Q1 to Q25, myself]
    Q1 Integral of tan^5(x)*sec^3(x), 2:19
    Q2 Integral of cos(2x)/(sin(x)+cos(x)), 5:58
    Q3 Integral of (x^2+1)/(x^4-x^2+1), 8:00
    Q4 Integral of (x+e^x)^2, 12:00
    Q5 Integral of csc^3(x)*sec(x), 14:00
    Q6 Integral of cos(x)/(sin^2(x)-5sin(x)-6), 20:00
    Q7 Integral of 1/sqrt(e^x), 23:38
    Q8 Integral of e^x*sqrt(e^x-1)/(e^x+3), 25:51
    Q9 Integral of 1/(x+sqrt(x)), 32:04
    Q10 Integral of abs(x-3) from -1 to 5, 34:39
    Q11 Integral of sin(x)/sec^2019(x), 37:19
    Q12 Integral of x*sin^-1(x)/sqrt(1-x^2), 39:00
    Q13 Integral of 2sin(x)/sin(2x), 43:06
    Q14 Integral of cos^2(2x), 45:36
    Q15 Integral of 1/(x^3+1), 47:55
    Q16 Integral of x*sin^2(x), 1:01:07
    Q17 Integral of (x+1/x)^2, 1:04:45
    Q18 Integral of 3/(x^2+4x+29), 1:06:00
    Q19 Integral of cot^5(x), 1:08:08
    Q20 Integral of tan(x)/(x^4-x^2+1) from -1 to 1, 1:12:06
    Q21 Integral of sin^3(x)*cos^2(x), 1:13:43
    Q22 Integral of 1/(x^2*sqrt(x^2+1)), 1:16:16
    Q23 Integral of sin(x)*sec(x)*tan(x), 1:20:15
    Q24 Integral of sec^3(x), 1:21:30
    Q25 Integral of 1/(x*sqrt(9x^2-1)), 1:25:30
    [26 to 51, thanks to GaMeR 123]
    26. 1:29:48 integral of cos(sqrt x)
    27. 1:31:35 integral of cosec x
    28. 1:34:09 integral of sqrt(x^2+4x+13)
    29. 1:43:26 integral of e^2x*cosx
    30. 1:46:43 integral of (x-3)^9 from 3 to 5
    31. 1:49:32 integral of (x-x^(3/2))^-1/2
    32. 1:52:37 integral of (x-x^2)^-1/2
    33. 1:56:03 integral of e^(2lnx)
    34. 1:56:57 integral of lnx/sqrt x
    35. 2:00:32 integral of 1/e^x+e^-x
    36. 2:01:57 integral of logx base 2
    37. 2:05:15 integral of x^3*sin2x
    38. 2:08:32 integral of x^2[1+x^3]^1/3
    39. 2:12:30 integral of 1/(x^2 + 4)^2
    40. 2:19:38 integral of sqrt(x^2-1) from 1 to 2
    41. 2:27:29 integral of sinh(x)
    42. 2:28:50 integral of (sinhx)^2
    43. 2:32:53 integral of (sinhx)^3
    44. 2:35:03 integral of 1/sqrt(x^2 + 1)
    45. 2:36:34 integral of ln(x + sqrt(x^2 + 1)
    46. 2:39:23 integral of tanhx
    47. 2:40:59 integral of sechx
    48. 2:48:37 integral of tanh inverse of x
    49. 2:43:15 integral of sqrt(tanhx)
    50. 2:51:20 integral of [x] from 0 to 5
    51. 2:53:40 integral of (secx)^6
    [Q52 to Q101, BIG thanks to Angel Mendez-Rivera]
    Q52, Integral of 1/(5x - 2)^4, 2:55:51
    Q53, Integral of ln(1 + x^2), 2:57:18
    Q54, Integral of 1/(x^4 + x), 3:00:42
    Q55, Integral of (1 - tan(x))/(1 + tan(x)), 3:03:09
    Q56, Integral of x·sec(x)·tan(x), 3:05:08
    Q57, Integral of arcsec(x), 3:06:45
    Q58, Integral of (1 - cos(x))/(1 + cos(x)), 3:11:20
    Q59, Integral of (x^2)sqrt(x + 4), 3:14:46
    Q60, Integral of sqrt(4 - x^2) from -1 to 1, 3:18:38
    Q61, Integral of sqrt(x^2 + 4x), 3:25:10
    Q62, Integral of (x^2)e^(x^3), 3:36:48
    Q63, Integral of (x^3)e^(x^2), 3:37:27
    Q64, Integral of tan(x)ln(cos(x)), 3:39:55
    Q65, Integral of 1/(x^3 - 4x^2), 3:42:11
    Q66, Integral of sin(x)cos(2x), 3:50:00
    Q67, Integral of 2^ln(x), 3:58:06
    Q68, Integral of sqrt(1 + cos(2x)), 4:01:21
    Q69, Integral of 1/(1 + tan(x)), 4:02:40
    Q70, Integral of sqrt(1 - ln(x)^2)/x from 1/e to e, 4:07:13
    Q71-72, Integral of 1/(cbrt(x) + 1) & Integral of 1/cbrt(x + 1), 4:10:30
    Q73, Integral of (sin(x) + cos(x))^2, 4:14:10
    Q74, Integral of 2xln(1 + x), 4:16:00
    Q75, Integral of 1/(x(1 + sin(ln(x))^2)), 4:19:34
    Q76, Integral of sqrt((1 - x)/(1 + x)), 4:25:48
    Q77, Integral of x^(x/ln(x)), 4:27:52
    Q78, Integral of arcsin(sqrt(x)), 4:29:12
    Q79, Integral of arctan(x), 4:39:16
    Q80, Integral of f(x) from 0 to 5, f(x) = 10 if x < 2 or x = 2, f(x) = 3x^2 - 2 if x > 2, 4:41:32
    Q81, Integral of sin(1/x)/x^3, 4:44:11
    Q82, Integral of (x - 1)/(x^4 - 1), 4:47:18
    Q83, Integral of sqrt(1 + (x - 1/(4x))^2), 4:52:49
    Q84, Integral of e^tan(x)/(1 - sin(x)^2), 4:55:17
    Q85, Integral of arctan(x)/x^2, 4:56:12
    Q86, Integral of arctan(x)/(1 + x^2), 5:00:28
    Q87, Integral of ln(x)^2, 5:02:32
    Q88, Integral of sqrt(x^2 + 4)/x^2, 5:06:39
    Q89, Integral of sqrt(x + 4)/x, 5:13:46
    Q90, Integral of sin(x)^3/(cos(x)^3 + sin(x)^3) from 0 to π/2, 5:18:03
    Q91, Integral of x/(1 + x^4), 5:19:13
    Q92, Integral of e^sqrt(x), 5:20:07
    Q93, Integral of 1/csc(x)^3, 5:21:37
    Q94, Integral of arcsin/sqrt(1 - x^2), 5:24:16
    Q95, Integral of sqrt(1 + sin(2x)), 5:24:58
    Q96, Integral of x^(1/4), 5:26:22
    Q97, Integral of 1/(1 + e^x), 5:27:47
    Q98, Integral of sqrt(1 + e^x), 5:29:13
    Q99, Integral of sqrt(tan(x))/sin(2x), 5:34:43
    Q100, Integral of 1/(1 + sin(x) from 0 to π/2, 5:39:16
    Q101, Integral of sin(x)/x + ln(x)cos(x), 5:45:39

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +48

      **Mistakes Time Stamps**
      ViperDaniel: "33:39 shouldn't that be a du? :)"
      Dylans17 " Uh oh, -2 times 2 equals -4 not -1, 1:52:05"
      Asok Mc: "5:16:56 you can not remove the absolute value because, for example, if x equals -3 the result of the logarithm would be negative"
      For a detailed explanation for Q90. Please see th-cam.com/video/9xaGYqiOkPM/w-d-xo.html

    • @blackpenredpen
      @blackpenredpen  5 ปีที่แล้ว +42

      You guys can leave your support comments and wishes to Lars under his comment. His YT name is: Л.С. Мото
      He is almost cancer free!!!

    • @learnit7142
      @learnit7142 5 ปีที่แล้ว +5

      😱😱😵😨

    • @EspoVispo
      @EspoVispo 5 ปีที่แล้ว +2

      Good job MaN

    • @ibrahimkachal6759
      @ibrahimkachal6759 ปีที่แล้ว +1

      @@blackpenredpen in Q61 you should keep absolute value you can try -4

  • @lolxd1336
    @lolxd1336 2 ปีที่แล้ว +3

    The geometric approach to the 10th question was so cool!!!

  • @nathanmurphy7585
    @nathanmurphy7585 5 ปีที่แล้ว +217

    This video is motivating me to get through Calculus II! Much respect ✊🏻

    • @soccerplayer2277
      @soccerplayer2277 5 ปีที่แล้ว

      Should be looking at series then.

    • @maxw89
      @maxw89 5 ปีที่แล้ว +4

      I can't believe I just watched six hours of something that I couldn't even motivate myself to do ten minutes of when I was in the class.

    • @dylankrejci9965
      @dylankrejci9965 5 ปีที่แล้ว

      @@soccerplayer2277 Man I sure do love series

    • @noobslayer815
      @noobslayer815 5 ปีที่แล้ว

      Max W lmao same bro