2.71 million subs aren't enough...I passed both AP and honors chemistry, Algebra 1,2 and 3 enhanced, and AP calculus just by watching your videos. Not to mention, I also show the Investment Club I lead your investment and stock videos as well. Thank you so much, God Bless.
Just wanted to say thank you, you are a serious life savor. I usually use your videos as a brush up on what we learned in class, bc I suck at math, and now with online classes and the whole pandemic, I have found myself even more confused and I feel lucky that I knew where to turn too (bc our school has bad tutors too). Thank you so much for your videos!
You are the best teacher - best on TH-cam. I learn a lot from all your videos. Thank you so much. Please post more AP Calculus and AP Chemistry videos. Please post AP Calculus videos with solved college board questions. Thank you.
I got full mark in the exam...I do not even practice my Textbook queries as once I watch your video everything is explained well..your are extremely good in explanation..pliz update more and more videos..
I really like all your videos. They are the best on youtube, in my opinion. But my attention span litterally ends in like 6 mins or so when I watch ur videos.. like, I struggle to stay focused. 😁. But anyways, awesome vids! Keep it up! 😎
For the last problem I dont think you would include -3/2^1/2 because it is equal to -2.1 which is outside the restricted domain. so there would be no local min and -2 would be the absolute min. Correct me if Im wrong.
52:10 If you want to shave (valuable) seconds off (while getting a better idea visually/kinestheticly), don't bother wasting time "testing points" to find out where the derivative changes sign. Simply quickly plot the (*numerator of the) derivative, ie plot f' vs x. Just use end behavior and the zeros to do this. (*Yes, there is something in the denominator in this particular example because we are dealing with a rational function, but in this example the denominator is always positive, so it won't affect finding where f' changes sign. Keep in mind, that you can avoid "testing the points" 100% of the time if dealing with a polynomial function.)
@36.12 it should be minus 12(0) i.e -0 and not +0 as stated in the question but more importantly perhaps @ 3.27 which should be -12(2) and not +12(2) ...... -24 and not +24 hence final answer @36.45 should be -7 and not +41.
I have a query. at 3:58 we have a graph which does not have a minima as last point is encircled and therefore is not part of the graph but the point before that is included in the graph so why we don't consider it as a minima. Thanks in advance
Hi, for the first problem you did, does it matter which number you plug into the first derivative? You did plugged in a # that is smaller than 1.5 into 2(2x-3). If I plug in a # that is smaller that 1.5 into 6x-6, would I still get the same answer as you? Thank you!
14:08 you said if the leading coefficient has a odd power like x^3 then it will have no max or minimums. but at 22:21 that function also has a leading coefficient with odd power of ^3 but that one has a max and minimum for some reason?
question on the laast problem..................................why would you include -3/2^1/2 ???? its already beyond -2???? please answer??organic chem plssss
Very nice but on 7:20 you said if f'(c) doesn't exist, we have a cusp. Not necessarily coz we might have vertical tangent just like in f(x)=x^(1/3) at x=0 . So how can we tell if we have a cusp or vertical tangent?
its a cusp because if f'(c) doesnt exist at x=a certain number then its not differentiable at that number and not differentiable means the first derivative isn't continuous on x=that number. Its only a verticle tangent if f(x) is undefined, not f'(c)
Please, do you have to find the X and Y intercepts to draw the graph with accuracy? If so, then how do I find my X_intercept for 2x^4 - 2x^2 - 1=0? Thank you
It doesn't look factorable. You can use the quadratic formula where a = 2, b = -2, and c =-1. The result that you get will equal x^2 and not x so you will have to take the square root of that result to get the final answer. You can also graph it using an online graphing calculator and find where it touches the x axis. Go to google and type in 'online graphing calculator' and the choose the first link that comes up which is desmos.com. Type in the expression "2x^4-2x^2-1" without the =0 part and you should see the graph. Move the mouse to the point where the graph touches the x - axis and you should see the answer. x = +1.169 and -1.169. I hope that helps :)
When you plug in a 2 into 2(2x-3), wouldn't you get a negative 2 instead by following order of operations, so instead of 2X2 = 4 -3 = 1, you'd do 2 - 3 = -1 X 2 = -2?
First of all, your videos are grades saving. But this is not what I want to say cause it is obvious, my question is how the hell do you know all those things like physics, chemistry, and math😅. You make me feel like they are piece of cake
Derivative Applications - Formula Sheet: bit.ly/4eV6r1b
Final Exams and Video Playlists: www.video-tutor.net/
2.71 million subs aren't enough...I passed both AP and honors chemistry, Algebra 1,2 and 3 enhanced, and AP calculus just by watching your videos. Not to mention, I also show the Investment Club I lead your investment and stock videos as well. Thank you so much, God Bless.
Now he's got twice that... well deserved
@@cubit404 Now he's got thrice that.... very well deserved
2 years later, he has the same numbers just in a different order. At 7.21m subs now!
Youre a life saver. Seriously, I really cant thank you enough. You have literally saved me. You dont know how much it means to us students. Thanksssss
This guy is mysterious, but a god at what he does. Who is you? Mr The organic chemistry.
@@Anthony-bn1go I did that intentionally grammar police :P.
@Arc10 lol
@@powerToYourself36 Wow noob. Still responding to replies 2 yrs later🤧
@@christiancardenas3261 coming from the one who is commenting on a 2 year later reply 🤧🤧🤧🤧🤧🤧🤧
@@powerToYourself36 u still find the organic chemistry guy useful to u ? even after 2 years? and what are u studying right now ?
Just wanted to say thank you, you are a serious life savor. I usually use your videos as a brush up on what we learned in class, bc I suck at math, and now with online classes and the whole pandemic, I have found myself even more confused and I feel lucky that I knew where to turn too (bc our school has bad tutors too). Thank you so much for your videos!
I hope a math formula invented in the future is named after this guy to instill his helpfulness for all of time.
Thank you for helping me to pass high school and univeristy. You're a life saver, thank you.
Much Love from Africa,you are really helpful sir.
When my friends asked me how do i get so good at calculus, i simply answer. “Im just an apprentice to a Calculus god on youtube”
Shut up
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I AM BUT THE APPRENTICE
I wish people could donate; this guy is very calm and helpful.
you're the only reason I'm passing calc thanks for your videos
In the class they don't teach us like that.. Thanks, it helped me a lot.
This guy's videos helped tons of people!
You are the best teacher - best on TH-cam. I learn a lot from all your videos. Thank you so much. Please post more AP Calculus and AP Chemistry videos. Please post AP Calculus videos with solved college board questions. Thank you.
I got full mark in the exam...I do not even practice my Textbook queries as once I watch your video everything is explained well..your are extremely good in explanation..pliz update more and more videos..
I understand you better than my teacher, thanks so much for making this videos they have helped me a lot
You’re videos are excellent because you explain and cover all the materials perfectly! Thank u very much!
from the bottom of my heart, thank you so much for these videos
Just wanna say you are amazing teacher....You solved mah biggest problem....you are just outstanding...
you the best teacher i have ever come across online . you are so smart
I really enjoyed watching your videos. Very explanatory and understandable.
I am a normal student,I see this dude's video,I like
that is a historical moment 36:45
lol, he made a mistake!
I really like all your videos. They are the best on youtube, in my opinion. But my attention span litterally ends in like 6 mins or so when I watch ur videos.. like, I struggle to stay focused. 😁. But anyways, awesome vids! Keep it up! 😎
SUPER CLEAR! I LOVE THIS!
please, keep up with the videos you are a life saver!
This guy is a life saver 🙏🏾
Amazing, My calc professor is horrible at his job. You should make a video to “HOW TO TEACH A STUDENT” and I’ll share it with my professor 😂❤
you are really a great person thank you so much for shearing your knwledge because knowledge is freedoom
OK. You corrected it. I was wondering why no one mentioned it earlier.
Thank you for this video, nice explanations. One correction: f(2) = 3(2)^2 - 12(2) + 5 = -7 actually, not 41. Cheers!
Whoops, just saw your in-video correction. No worries!
For the last problem I dont think you would include -3/2^1/2 because it is equal to -2.1 which is outside the restricted domain. so there would be no local min and -2 would be the absolute min. Correct me if Im wrong.
At 1:09:00 he said it’s not part of the interval
Best teacher ever thank uuu so much
52:10 If you want to shave (valuable) seconds off (while getting a better idea visually/kinestheticly), don't bother wasting time "testing points" to find out where the derivative changes sign. Simply quickly plot the (*numerator of the) derivative, ie plot f' vs x. Just use end behavior and the zeros to do this. (*Yes, there is something in the denominator in this particular example because we are dealing with a rational function, but in this example the denominator is always positive, so it won't affect finding where f' changes sign. Keep in mind, that you can avoid "testing the points" 100% of the time if dealing with a polynomial function.)
Cursseeee you, that tutor guyyyyyyyy!!!!!!!!!
All I could say is thank you very much.
This video has saved me in my darkest hour
Wow your explanation was very clear. Like
@36.12 it should be minus 12(0) i.e -0 and not +0 as stated in the question but more importantly perhaps @ 3.27 which should be -12(2) and not +12(2) ...... -24 and not +24 hence final answer @36.45 should be -7 and not +41.
Bruh he corrected it in the video itself.
In 27:55 it's super complicated.
This was really helpful, Thanks a lot.
41:33, I am confused why 0 is part of the critical points. Wouldnt it just be -1 and 1?
I like your voice...
@1:04:30 you keep using -3/sqrt(2) wich is -2.12 so its out of our intervall. Or did I do something wrong here?
no youre right, i think he just made a mistake
It's been like a year but for future uses, he did remove it in the end; thus, not making it the absolute minimum value in the interval [-2,3]
you are amazing
awesome, now do it with trig max and minimums !!
Thanks ❤. please do videos on area between two curves and also on volume by slicing disks and washers methods ,volume by cylindrical shells
Quick question: Wouldn't the square root of 9-(3)^2=0, which would create a domain issue?
these long videos are soo helpful and in depth, can you make vids on Vector Geometry and Linear Algebra !??!
on 57:26, shouldn't the graph be restricted on the interval [-1,2]? Why did you make it continuous on all real numbers?
Thank you so much for everything 💕
What if we have two minimums, but they are "the same"?
(-1, -1) and (1, -1). Are both absolute minimum? Or are they both local minimum?
Very useful. Thank you sir.
Very helpful,thanks ❤
thank u
Excellent, as always.
Thank you
thank you chief
whoever dislikes his videos will never be able to learn anything in life.
Dislikers are probably the rival educational youtubers lol
No just hate your comments
If someone commented it id probably like it
A hole
youre the best!
increasin' decreasin'. My boy is such a g he doesn't have to pronounce his g's.
Thank you !
Thank you very much👌👍
I have a query. at 3:58 we have a graph which does not have a minima as last point is encircled and therefore is not part of the graph but the point before that is included in the graph so why we don't consider it as a minima.
Thanks in advance
44:30
Very helpful
Hi, for the first problem you did, does it matter which number you plug into the first derivative? You did plugged in a # that is smaller than 1.5 into 2(2x-3). If I plug in a # that is smaller that 1.5 into 6x-6, would I still get the same answer as you? Thank you!
Ya bro
So like... does chain rule not apply to this because when you bring the exponent down don't you have to multiply the expression by its derivative-
Great video....👍👍👍
Thanks sir big salute!
14:08 you said if the leading coefficient has a odd power like x^3 then it will have no max or minimums. but at 22:21 that function also has a leading coefficient with odd power of ^3 but that one has a max and minimum for some reason?
question on the laast problem..................................why would you include -3/2^1/2 ???? its already beyond -2???? please answer??organic chem plssss
what will we do when we have modulus function
Very nice but on 7:20 you said if f'(c) doesn't exist, we have a cusp. Not necessarily coz we might have vertical tangent just like in f(x)=x^(1/3) at x=0 . So how can we tell if we have a cusp or vertical tangent?
its a cusp because if f'(c) doesnt exist at x=a certain number then its not differentiable at that number and not differentiable means the first derivative isn't continuous on x=that number. Its only a verticle tangent if f(x) is undefined, not f'(c)
Thank you so much
Thank You!
8:82
Shouldn't the lower local min be a critical number instead?
Thanks G
Seriously I Thank u.
hey man, can you take my exam for me? thanks
36:45 he switch the -12 to +12 did anyone noticed ?
52:25 if you plug in 1 the answer is gonna be negative no ?
THANK U BROTHA
Thanx
Him: "and the value is 46"
Me: "OH MY GOD WHAT DID I DO WRONG HOW DID HE GET THAT"
43:50 why (-2, 15) isn't local max
Does absolute max/min mean global max/min?
Please, do you have to find the X and Y intercepts to draw the graph with accuracy? If so, then how do I find my X_intercept for 2x^4 - 2x^2 - 1=0? Thank you
It doesn't look factorable. You can use the quadratic formula where a = 2, b = -2, and c =-1. The result that you get will equal x^2 and not x so you will have to take the square root of that result to get the final answer. You can also graph it using an online graphing calculator and find where it touches the x axis. Go to google and type in 'online graphing calculator' and the choose the first link that comes up which is desmos.com. Type in the expression "2x^4-2x^2-1" without the =0 part and you should see the graph. Move the mouse to the point where the graph touches the x - axis and you should see the answer. x = +1.169 and -1.169. I hope that helps :)
Thank you.
how is 5/3 present in 2/3? please explain
When you plug in a 2 into 2(2x-3), wouldn't you get a negative 2 instead by following order of operations, so instead of 2X2 = 4 -3 = 1, you'd do 2 - 3 = -1 X 2 = -2?
that isnt how order of operation works....
God bless you
Physics C E&M Playlist?
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Why don't you use the second derivative? U don't think it's faster???
what program do you use to do the video?
It's in this video:
th-cam.com/video/rBSuMooMYrs/w-d-xo.html
First of all, your videos are grades saving. But this is not what I want to say cause it is obvious, my question is how the hell do you know all those things like physics, chemistry, and math😅. You make me feel like they are piece of cake
more knowlege in short time😱
57:50
Thankyouuuuu🥺❤️
I feel like I should be paying him
Lol same