Calculus: Integrals 5

[dany122]

exelent !! good work, very helpful !!

[Luks9106]

lol

I'm brazilian so english is not my mother thong.

But I learn more from this guy than from my portuguese speaker teacher XP

[DeathMaker0]

you are the best ;)

[sim100000]

Its ridiculous how much easier you make this compared to my prof,

Thanks!

[salamon117]

My university professor is extremely confusing, and even more so when I ask questions. THANK YOU SO MUCH for these vids! You're helping me pass my course, by making it really easily understandable! It helps too that you are very clear when talking and you explain each step, so I'm never lost or confused during an example!! :D

Thanks again!!

[r2cool986]

wow.. i think i understand everything now... I have a final exam in an hour.. and you just saved my life!!

[ningalex]

this is awesome, especially, for student who's absent for a week of class like me. just catch everything in one night. OMG! Thank you a million.

[Soboredwtf]

You sir, are a fantastic calculus teacher. You make this stuff EASY, and I've never done calc before. Not even pre-calc. Not even MATH 30... I wish so much that you were my teacher, you're fantastic at explaining everything.

Thank you for your videos.

[fightliferockin]

it's 2:30 in the morning, and i have a test on this tomorrow at 8.

you're helping more than you'll ever know, sir.

[philippmikio2]

Suddenly everything fell into place. I wish this would be the case with my math teacher.....

[paris0818]

For the first example, why wasn't the answer -sint^3+c?

[HardSoundGuy]

You're thinking of taking the derivative of cos.

He's doing integration, where you undo the derivative.

The derivative of sin is cos.

So taking the integral (or antiderivative) of cos is +sin.

[Blueknightex]

YAY more videos on Integral! What miracle that I found this channel!

[henrydargermouse]

Don't complain about the conspiracy

BECOME the conspiracy

[jesca215]

ur so nice! and smart, thank u for the videos, very clear and helful

[yasoko]

thank you so much ... you make things easy to me .

[ILOVENERJA]

haha I just learned this in class!!

you are a pretty good teacher (:

[nickdoof]

You're great. Your T-shirts are always snazzy.

[wmnene]

Great explanation.

[masterjim2007]

Hi can u show a function more complicated for ex a function over a function x/1+x^4

[sjsawyer]

Just let u = x^2, then, if you follow the same steps as in this video, you will have 1/2 * the integral of (1/(1+u^2)) du. That is of course arctan(u) + C, and when you substitute x^2 back in for u, the final answer is

(1/2)*arctan(x^2) + C

[aceofdragons]

The last problem can be done by using intergration by parts. (Think he introduced the formula in one of the videos)

[Entertainmentwf]

yep and easily with parts :).

[Falryu]

Yay. With all I've learned from the videos I was able to do the second and third on my own since the case was similar to the previous examples on previous videos. You make calculus look so easy.

[sakuraniimi]

where were you when i was in high school :)

[indiskret]

Really nice videos, love them! :)

[qtpie17800]

These videos are awesome. Too bad my AP exam is tomorrow... =/

[tresfou247]

my calc teacher does this way too fast, this is a great pace!

[32docholiday]

great work here, thanks for the integrals. i hope theres more advanced techniques of integration!

[deathwishtomax]

this is excellent. you are a great help.

[paz5]

Thanks again! Keep up the good work