Logarithms - Change of Base | Don't Memorise

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  • เผยแพร่เมื่อ 27 ม.ค. 2025

ความคิดเห็น • 201

  • @InfinityLearn_NEET
    @InfinityLearn_NEET  4 ปีที่แล้ว +38

    #DidYouKnow: Any time that a scientific field uses a scale, like the pH scale or the Richter scale, you can bet you will find exponents. Both the pH scale and the Richter scale are logarithmic relationships with each whole number representing a ten-fold increase from the number before it.
    ✅To learn more about Logarithms, enroll in our full course now: infinitylearn.com/cbse-fullcourse?TH-cam&DME&IidwVzW4rTA
    To watch more videos, click here: bit.ly/LogarithmsVideos_DMYT

  • @spelunkerd
    @spelunkerd 5 ปีที่แล้ว +52

    Dear Don't Memorize. Gotta love your channel title. So, I was a little surprised at your explanation of how to calculate base 3 log(8), moving directly to a memorized formula, the same way it is conventionally taught. It may be a little slower to derive the formula, but if you don't use it every day the derivation is easy, and fundamentals are reinforced. Let y = log base 3(8), which by definition means 3^(y) = 8. Now take the natural log of each side. you get y*ln(3)= ln(8). Now divide both sides by ln(3), and you have the memorized formula, at least for the specific example when you used natural logs. To get the general formula, notice that the derivation works for any base.

  • @AnilKumar-zb8cf
    @AnilKumar-zb8cf 4 ปีที่แล้ว +147

    I fell in love with don't memorize

    • @princeroy5976
      @princeroy5976 4 ปีที่แล้ว +4

      I also man

    • @danilomoviescenter5787
      @danilomoviescenter5787 3 ปีที่แล้ว

      Me tooooooooooooooooooooooooo

    • @Neph1944
      @Neph1944 3 ปีที่แล้ว

      Same here

    • @Anigodhan
      @Anigodhan 3 ปีที่แล้ว

      Got that right

    • @RD-gx3yy
      @RD-gx3yy 3 ปีที่แล้ว +2

      Lol and I fell in love with mathematics

  • @RazerXGamer
    @RazerXGamer 5 ปีที่แล้ว +28

    Your channel is soooooo underrated , I love your content because it is well presented and also straightforward. Keep up the good work!

  • @quickdeliverymaths
    @quickdeliverymaths 3 ปีที่แล้ว +2

    No one can explain better than don't memories.
    Love you so much.

  • @vasu5361
    @vasu5361 4 ปีที่แล้ว +5

    this channel is so underrated!

  • @harshithaj5416
    @harshithaj5416 4 ปีที่แล้ว +10

    Thank you don't memorise channel for making us to learn more easier and understand properly the concepts which u teach . They are more useful for us . One second thank you for your efforts 👍👍👍

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  4 ปีที่แล้ว +4

      Thank you for appreciating our efforts, Harshitha!
      We hope you had a great learning experience😊

  • @neassa8006
    @neassa8006 3 ปีที่แล้ว +2

    I CAN NEVER THANK YOU ENOUGH. please never stop doing this. Thank you so much: this help me alotn

  • @keerthanaimandi6333
    @keerthanaimandi6333 2 ปีที่แล้ว +5

    I really have to say thanks to don't memorise channel for making easy to understand really quick ☺️💜

  • @Aaron-hh8nx
    @Aaron-hh8nx 4 ปีที่แล้ว +13

    > 4:06 why are you dividing it by log x a?
    > 4:27 why are you multiplying log a b ? and which two sides ?
    > 4:35 what is the use of that equation ?

    • @bnsingh2329
      @bnsingh2329 4 ปีที่แล้ว +3

      She has derived a property useful for doing sums.. All that multiplying and dividing was done to reduce the formula in a form which is easy to remember

    • @bloodybehelit5356
      @bloodybehelit5356 4 ปีที่แล้ว +2

      derivation for log b a x log a b = 1. useful for numericals

    • @kahanx10
      @kahanx10 3 ปีที่แล้ว

      Kill overthinking, just know they are some useful formulas : )

    • @Aaron-hh8nx
      @Aaron-hh8nx 3 ปีที่แล้ว

      @@kahanx10 I needed to understand

    • @kahanx10
      @kahanx10 3 ปีที่แล้ว

      @@Aaron-hh8nx it's like : "In case if you multiply/divide, this is the logic". That's it.

  • @Deepasingh-im3or
    @Deepasingh-im3or 4 ปีที่แล้ว +2

    One of d best on u tube !! I hav evr found

  • @supriyadey7528
    @supriyadey7528 4 ปีที่แล้ว +1

    Thx Alot....My teacher is old, but this video is gold

  • @educatewithkabir3169
    @educatewithkabir3169 3 ปีที่แล้ว

    I am fond of love with don't memories ,this is the best app for education I have found on youtube

  • @danica9482
    @danica9482 3 ปีที่แล้ว +1

    Thank you very much! You just saved me!

  • @selfstudyclasses2835
    @selfstudyclasses2835 4 ปีที่แล้ว +1

    Best channel for people to clear concept on TH-cam ❤️❤️❤️❤️🙏🙏🙏

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  4 ปีที่แล้ว

      Thanks a lot, Self Study Classes!
      Happy Learning! 🙂🙂

  • @gabrieljohn7052
    @gabrieljohn7052 2 ปีที่แล้ว

    I am so in love with this channel

  • @shwetaapte834
    @shwetaapte834 5 ปีที่แล้ว +2

    your videos are relly nice and helpful

  • @safiullahmahar1578
    @safiullahmahar1578 5 ปีที่แล้ว +2

    Don't memories .I'm really thankful for u.u always give real concept about any topic

  • @aesthetically.blossom
    @aesthetically.blossom 3 หลายเดือนก่อน

    I literally love you guys , stay blessed always ❤❤❤❤❤❤❤❤❤❤❤❤❤❤

  • @danilomoviescenter5787
    @danilomoviescenter5787 3 ปีที่แล้ว

    You are such amazing teacher ever.......

  • @solidpandaboi5121
    @solidpandaboi5121 5 ปีที่แล้ว +5

    these videos are so fun! i don’t know how you make math fun lmao

  • @studywithme5085
    @studywithme5085 7 ปีที่แล้ว +105

    I think I have found the Platinum mine in the internet

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  7 ปีที่แล้ว +14

      Thank you so much :)

    • @moyesmagic
      @moyesmagic 4 ปีที่แล้ว +1

      I have found an mixture of all ore in internet

  • @aayushphadte
    @aayushphadte 5 ปีที่แล้ว +1

    Thank you so much!!🍀

  • @jayjoseph3104
    @jayjoseph3104 2 ปีที่แล้ว

    VERY WELL PRESENTED 👍

  • @modithkavinda7337
    @modithkavinda7337 5 ปีที่แล้ว +1

    Thank you very much for Help !

  • @dimpalsingh5647
    @dimpalsingh5647 4 ปีที่แล้ว +1

    Amaging
    Fabulous 😘😘

  • @prabhakarp9536
    @prabhakarp9536 4 ปีที่แล้ว +3

    Good job guys its fabulous ,fantastic and wonderful job "keep it up"this is the number one channel

  • @aravindsatyala2650
    @aravindsatyala2650 5 ปีที่แล้ว +3

    Your teachings are very useful for me . Mine is a small request , please do some videos on Chemical kinetics

  • @ashutoshkumarpandey5307
    @ashutoshkumarpandey5307 4 ปีที่แล้ว

    YOUR EFFORTS TO ME ,CANNOT STOP ME FOR ACHEIVING THE SUCCESS . I LKE YOUR WAY OF TEACHING .

  • @ranjeetkumar2051
    @ranjeetkumar2051 2 ปีที่แล้ว

    thank you very much for making this video very helpful ❤❤❤❤❤❤❤❤❤❤❤❤❤❤💕💕💕💕💕💕💕💕💕💕😘😘😘😘

  • @POOJAKUMARI-be6pc
    @POOJAKUMARI-be6pc 3 ปีที่แล้ว

    Nice way to understand such complicated rules

  • @MM-kx5yg
    @MM-kx5yg 3 ปีที่แล้ว +1

    I dont know how i paased my graduation n even 4 years done that..
    The last time i did logarithms once n for last time , it was 10 years ago..today my younger bro (younger among 11 siblings) came to ask me these questions.. I told him i dont know log things but i started it ... And now after watching ur video...
    We have done with log chapter...
    I m feelings satisfied and happy..
    I wish every teacher teaches like you...i had very bad teacher i still blame her for my math 😂😂😂😂
    😍😍😍😍🤗🤗😍🤗

    • @uzaira9088
      @uzaira9088 3 ปีที่แล้ว +1

      And am gona fail to graduate cuz of my laziness,the school system,teachers,parents and myself mostly,learning log 2weeks b4 exams

  • @jayasudharsanav7562
    @jayasudharsanav7562 6 ปีที่แล้ว +3

    thank you for your videos .Your videos are Awesome😃

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  6 ปีที่แล้ว

      Thank you very much for the appreciation and for watching Jaya. :)

  • @weggquiz
    @weggquiz ปีที่แล้ว

    love your channel

  • @ArtiKumari-xc1pz
    @ArtiKumari-xc1pz 4 ปีที่แล้ว +1

    Thank u so much for this logarithms videos. They are really helpful 😇

  • @ps7076
    @ps7076 5 ปีที่แล้ว +1

    Thank u sooooo much for such an amazing videos

  • @vikramchoudhary5938
    @vikramchoudhary5938 6 ปีที่แล้ว +3

    Thank you so much for such brilliant videos ..grateful

  • @gayusmusic9673
    @gayusmusic9673 6 ปีที่แล้ว +27

    Dear dont memorise
    i just love your uploads ♡
    but...i didnt understand the last part in this video...can u pls help me out

    • @tamimhassan9228
      @tamimhassan9228 4 ปีที่แล้ว

      Me 2 bro

    • @mohimirza
      @mohimirza 4 ปีที่แล้ว +2

      @@tamimhassan9228 look at the change of base formula only and try to interchange b and a on both sides of the equation. That is what the tutor has done in that last part.

  • @eswararaokusumanchieswarar9270
    @eswararaokusumanchieswarar9270 6 ปีที่แล้ว +1

    Superb explanation

  • @priyanshuraj7659
    @priyanshuraj7659 2 ปีที่แล้ว

    Thanks "don't memories" finally I got it😄😇

  • @soumyaitis..8664
    @soumyaitis..8664 6 ปีที่แล้ว +1

    Amazing explanation

  • @kavya6245
    @kavya6245 5 ปีที่แล้ว +2

    You are making things interesting

  • @shewaram3135
    @shewaram3135 4 ปีที่แล้ว

    Really helpful to me and others Thanks Don't Memorise

  • @dgtatpug13
    @dgtatpug13 5 ปีที่แล้ว

    Your videos are excellent.Keep it up👍👍👍🤘🤘

  • @rafidahmed1977
    @rafidahmed1977 4 ปีที่แล้ว

    best channel ever

  • @atuhairearnold
    @atuhairearnold 2 ปีที่แล้ว

    very helpful thanx

  • @bibikhatija7686
    @bibikhatija7686 4 ปีที่แล้ว +7

    😭😭I didn't understand the last part but I will watch again and try to understand
    Guys I watched the last part 2 times and I understood the concept. I would like to say that learning with DON'T MEMORISE CHANNEL is awesome.

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  4 ปีที่แล้ว +3

      We are really glad to know that you understood the concept well now. Thank you for all the kind words... keep watching! 🙂

  • @studywithme5085
    @studywithme5085 7 ปีที่แล้ว +4

    I love this channel extremely ..it's amazing .Thanks..

  • @fx-991exclasswiz8
    @fx-991exclasswiz8 6 ปีที่แล้ว +1

    Very nice I love it
    What a clear voice
    And nice explanation

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  6 ปีที่แล้ว

      Hi Rajan,
      Please subscribe and press the bell icon to never miss a video: bit.ly/DontMemoriseTH-cam :)

  • @ningateiningsen8758
    @ningateiningsen8758 4 ปีที่แล้ว

    I love this explanations🖤

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  4 ปีที่แล้ว +1

      Thank you so much Ningatei for your appreciation. We are glad that you understood the concept. Do support us by subscribing to our channel. 👍👍

  • @saumyashruti8553
    @saumyashruti8553 6 ปีที่แล้ว +1

    your channel is one of the best channels I have come across so far

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  6 ปีที่แล้ว

      I'm glad to hear that.
      Please subscribe and press the bell icon to never miss a video: bit.ly/DontMemoriseTH-cam
      Happy Learning :)

  • @navkmc
    @navkmc 3 ปีที่แล้ว

    Thank you

  • @kalsoomkhan6953
    @kalsoomkhan6953 4 ปีที่แล้ว

    I have no words to thank u ....Thank u soooooooo much.....ur channel is no.1 channel....My favourite teacher.....I have no need to join an academy..😘

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  4 ปีที่แล้ว

      Thank you so much for being so kind, Kalsoom! We are extremely glad to know you love our channel and our team. Keep watching and supporting always!! 🙂🙂

  • @greenroberts8819
    @greenroberts8819 5 ปีที่แล้ว +1

    Love your channel, keep up the good work

  • @abhishiktaganguly9557
    @abhishiktaganguly9557 4 ปีที่แล้ว +1

    @DON'T MEMORISE, can you please prove the logarithm formula? Your video was great! But please help me out with this...

  • @Anigodhan
    @Anigodhan 3 ปีที่แล้ว +1

    So goooood

  • @sirishadevirayudu7330
    @sirishadevirayudu7330 3 ปีที่แล้ว +1

    Supper mam 🥰🥰🥰

  • @yousuffarooq861
    @yousuffarooq861 3 หลายเดือนก่อน

    Way of teaching is awesome...

  • @balugugulothh9645
    @balugugulothh9645 4 ปีที่แล้ว

    Nice 👌

  • @amirsmathschool
    @amirsmathschool 3 ปีที่แล้ว

    very good.

  • @lazy_user
    @lazy_user 5 ปีที่แล้ว +1

    nice video i like it

  • @mvsprabash
    @mvsprabash 4 ปีที่แล้ว

    This channel is better than my teachers

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  4 ปีที่แล้ว

      Thank you, Prabash!
      Keep watching and learning! 🙂🙂

  • @vimathamm.s8087
    @vimathamm.s8087 5 ปีที่แล้ว +3

    I think that I fell in love with don't memorise.

  • @rameezfaizal2689
    @rameezfaizal2689 2 ปีที่แล้ว

    awesome. guys..

  • @raakhan6929
    @raakhan6929 หลายเดือนก่อน

    how do you choose what base to use for the change of base formula?

  • @technicaltrigger9641
    @technicaltrigger9641 ปีที่แล้ว

    Excellent

  • @jugemujugemugokonosurikire4735
    @jugemujugemugokonosurikire4735 7 ปีที่แล้ว +3

    3:10
    log can also be expressed as lg
    lg is also equals to log to base 10

  • @duomaxwell8803
    @duomaxwell8803 4 ปีที่แล้ว +1

    Can't type math in comment so i'll use these annotations:
    log_a_B means log of B to base a.
    z[x] = y mean z to power x equal y. Example 3[2]=9
    Change of base, where did it come from?
    1) log_3_8 = a 3[a]=8.
    2) log_e_8 = x e[x]=8.
    3) log_e_3 = y e[y]=3
    4) From 1) 2), we can get 3[a]=e[x]
    5) Replace 3 with e[y], we can get e[y][a] = e[x].
    e[y][a] is the same as e[ya], so we have e[ya]=e[x]
    6) Remove e, we have ya = x
    7) a = x/y log_3_8 = log_e_8/log_e_3

  • @timwhite7127
    @timwhite7127 10 หลายเดือนก่อน

    Darn if you're not correct. I plugged in log(e) x ln(10) = in the calculator and 1 popped up. Thanks for the lesson.

  • @shybound7571
    @shybound7571 5 ปีที่แล้ว +1

    please explain where change of base comes from

  • @shubhambhandari415
    @shubhambhandari415 6 ปีที่แล้ว +4

    Great, extremely great effort by you.
    The best vedio which i ever seen is this. 👌#001

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  6 ปีที่แล้ว +1

      Thank you for your kind words! We really appreciate your compliment :)

    • @shubhambhandari415
      @shubhambhandari415 6 ปีที่แล้ว

      Can u add a vedio on modulus
      , its graph
      And how to take its limits briefly

  • @TheFuture36520
    @TheFuture36520 2 ปีที่แล้ว

    I love this

  • @srinidhikurella1743
    @srinidhikurella1743 7 ปีที่แล้ว +2

    INTERESTING

  • @pampaghoshpal9169
    @pampaghoshpal9169 3 หลายเดือนก่อน

    The series of videos on logarithms helped me a lot 😊

  • @rameshr4884
    @rameshr4884 4 ปีที่แล้ว +1

    M really thankful to your amazing interesting videos keep making more amazing video... And am getting motivated in maths. Thank you a lotttt!!

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  4 ปีที่แล้ว

      It's my pleasure Ramesh. We are glad that you understood the concept. We are happy that we could help you learn. You motivate us to do better. Keep watching our videos.😊😊

    • @rameshr4884
      @rameshr4884 4 ปีที่แล้ว +1

      @@InfinityLearn_NEET did u uploaf intermediate 1st year maths sequences and series chapter

  • @sukhmansingh7643
    @sukhmansingh7643 6 ปีที่แล้ว

    Smart teaching

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  6 ปีที่แล้ว

      Thank u very much for the appreciation and for watching Sukhman. :)

  • @mnpvaishnavi427
    @mnpvaishnavi427 4 ปีที่แล้ว +1

    See the video from 2 minutes 49 seconds in the calculator there is 1.8927 and near the equation he/she wrote 1.8927 how can that be ?

  • @Jivan____1
    @Jivan____1 2 ปีที่แล้ว

    May I know from where you do the 1st method????

  • @chethanbhat3435
    @chethanbhat3435 6 ปีที่แล้ว +1

    Is there is no any method to calculate without using calcilator

  • @mdmumtazalam959
    @mdmumtazalam959 6 ปีที่แล้ว

    thanks

  • @meghakumari8239
    @meghakumari8239 6 ปีที่แล้ว +1

    I always attractive your videos

  • @shobhitagrawal32
    @shobhitagrawal32 6 ปีที่แล้ว +1

    Amazing Explanations! What's the software used here?

  • @afifassihab7953
    @afifassihab7953 4 ปีที่แล้ว +6

    Now I knew the usage of log symbol in calculator mom. :)

  • @sakshimehta2413
    @sakshimehta2413 6 ปีที่แล้ว +13

    But how this change base formula came into picture??

  • @tobiaschapinda6771
    @tobiaschapinda6771 3 ปีที่แล้ว

    Given that log_a ⁡p=0.7and log_a ⁡q=2, find log_a⁡〖p^2 〗, log_a⁡〖p^2 〗 q and log_a⁡ (apq)

  • @vijayakumarvj
    @vijayakumarvj 3 ปีที่แล้ว

    vera level

  • @annapurnam.1603
    @annapurnam.1603 4 ปีที่แล้ว

    hello
    Iam shanaya mascarenhas
    i have doubts regarding ur vedio lectures. I love ur videos because they are so easy. Can u help me to solve doubts.

  • @gayatrigogoimunu525
    @gayatrigogoimunu525 4 ปีที่แล้ว

    I think I have found a good platform in you tube .❤

  • @daisy98015
    @daisy98015 5 ปีที่แล้ว

    Do you physics too? Dimensionless numbers pleaseee thanks

  • @visionforfuture7953
    @visionforfuture7953 4 ปีที่แล้ว

    Great

  • @sasikumartangala5001
    @sasikumartangala5001 6 ปีที่แล้ว

    Super explanation mam

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  6 ปีที่แล้ว +1

      Thank u very much for the appreciation and for watching. :)

  • @sureshsarma-jy6sp
    @sureshsarma-jy6sp หลายเดือนก่อน

    Thanks

  • @kannanr9016
    @kannanr9016 5 ปีที่แล้ว +1

    Really more helpful for my IES preparation, so please explain integration and deferentiation concept mam

  • @m.padmanav3914
    @m.padmanav3914 ปีที่แล้ว

    Math Doctor ♥️♥️♥️🤗🤗🤗🥰🥰🥰🥰🥰🙏🙏

    • @adityapatil_111
      @adityapatil_111 ปีที่แล้ว +1

      You are in which grade??

    • @m.padmanav3914
      @m.padmanav3914 ปีที่แล้ว

      @@adityapatil_111 i am a math teacher

    • @adityapatil_111
      @adityapatil_111 ปีที่แล้ว +1

      @@m.padmanav3914 whom do you teach.. means which class?

    • @m.padmanav3914
      @m.padmanav3914 ปีที่แล้ว

      @@adityapatil_111 upto 12th

  • @sujalgrover9034
    @sujalgrover9034 3 ปีที่แล้ว

    Teacher then how can we find base changing without calculator ?
    Please make sure to reply and make 1 video as school will not allow to use calculator.

  • @ankitkumarojha7510
    @ankitkumarojha7510 4 ปีที่แล้ว

    I have cleared a milestone

    • @InfinityLearn_NEET
      @InfinityLearn_NEET  4 ปีที่แล้ว +1

      Hey, Ankit congratulations on that! And thank you for having us while achieving your milestone!
      Comments like these inspire us to work hard and create more learning content for our students. I have a suggestion for you. Could you please share your story of how Don't Memorise has helped you here: dontmemorise.com/share-your-story/ This could help many other students read your story, and you also have a chance to be featured on our website. 🙂🙂

  • @MrGold-17
    @MrGold-17 3 ปีที่แล้ว

    My calculator has a button where you can put you own base and argument in! But nice video now we know how the calculator does it hahaha

  • @sonalisingh940
    @sonalisingh940 3 ปีที่แล้ว

    Why can't we calculate logarithm of 8 to the base 3 by calculator? Which you said in the opening of the video.

  • @safiullahmahar1578
    @safiullahmahar1578 5 ปีที่แล้ว

    And I'm request to u plz make more videos on math .

  • @chethanroyal9558
    @chethanroyal9558 4 ปีที่แล้ว

    Good