That's the person who helped me the most in my past month with the almost impossible task to learn calculus from scratch for month and a half. I am sitting the calculus exam in 8 days... he made all of this inhumane just a little but enough humane. A true legand!
One day, when I'm a billionaire, I'll remember Sal and all the good Khan's academy has done for me and so many others! Absolutely top notch tutoring. Cannot believe it's free.
OMGGG THANK YOU SO MUCH. I was having the HARDEST time EVER trying to figure out the integral of xcos(x) ;n; I lost half of the points on an exam question because I had NO idea how to do it, AND I've been staring at my calculus book for the past 5 hours trying to figure it out. So long story short, THANK YOU!
Would have been better if he used U an dV substitutions. Integration of the product of 2 different functions of sams IGN or X Basically its a clever reverse engineering of the product rule where the "U" factor must be differentiable and he "dV" factor integratble. The rest is just algebra. Supposedly Brooke Taylor of Taylor series is credited with the development of this tecnique 300 years ago.
thank you so much. my prof has an extremely thick Russian accent on top of just being terrible at explaining things so his lectures are basically incomprehensible. I was on the verge of tears in lecture today but this is actually pretty easy lmao.
![KSI - Dirty [Official Visualiser]](http://i.ytimg.com/vi/VoDh1h1dPUE/mqdefault.jpg)
That's the person who helped me the most in my past month with the almost impossible task to learn calculus from scratch for month and a half. I am sitting the calculus exam in 8 days... he made all of this inhumane just a little but enough humane. A true legand!
One day, when I'm a billionaire, I'll remember Sal and all the good Khan's academy has done for me and so many others!
Absolutely top notch tutoring. Cannot believe it's free.
U a billionaire yet ?
@@santiagorodriguez9017 its just four years man 😭
OMGGG THANK YOU SO MUCH. I was having the HARDEST time EVER trying to figure out the integral of xcos(x) ;n; I lost half of the points on an exam question because I had NO idea how to do it, AND I've been staring at my calculus book for the past 5 hours trying to figure it out. So long story short, THANK YOU!
Wow it's almost as if coursebooks are not designed to give an easy understanding for the student.
The authors could take notes from videos like this.
Would have been better if he used U an dV substitutions.
Integration of the product of 2 different functions of sams IGN or X
Basically its a clever reverse engineering of the product rule where the "U" factor must be differentiable and he "dV" factor integratble. The rest is just algebra. Supposedly Brooke Taylor of Taylor series is credited with the development of this tecnique 300 years ago.
thank you so much. my prof has an extremely thick Russian accent on top of just being terrible at explaining things so his lectures are basically incomprehensible. I was on the verge of tears in lecture today but this is actually pretty easy lmao.
Khan academy shows best math. I feel like i learnt simple math but i am able solve good problems.
THANKSS YOU SAVE MY LIFE SAL
You're the mahn, Kahn!
Best explanation ever I see.😀
the best!
Thank you 💕 very much my lecture/!!
i thought the anti derivative of (1 * sin(x)) would be (x * -cos(x))? Like the second part of your problem is what I am looking at. Please helps?
That is what am trying to figure out😏😏
take the conztant out at front and we r done
Because you can factor out the 1 before applying the anti derivative. Treat it like a constant.
good job
thank u
I have no clue whats going on here.
Let's watch FUNNY FAT CHINESE KID then.
hi; can u help me what if i used cos x as my u and my xdx as my dv... can u help me solve it tnx
have u sloved it? 😂
Have you solved it yet?
Any luck?
Shouldn't g(x) be sin(x)+C?
yes it is
I think that you make something wrong in the answer
Uh oh, someone got the wrong order of videos!
A hat in the title is scary ;;
Vc
Anti derivatovääääää
Are you joking or serious?
I am very serious Wedi.