Integral of cos^2x

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This calculus video tutorial explains how to find the integral of cos^2x using the power reducing formulas of cosine in trigonometry.

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I just had my Calc 2 midterm. I think I did every thing right... except for this. I knew it would be simple. Crying rn

clanman
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These short experiences are really useful, thanks 🙏

modidit
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I love your channel...it did help me a lot.Merci beaucoup, vraiment vous m'avez sauvé la vie, très bon travail et bonne continuation👍💝☺

roseblanche
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1:03, ,can u pls tell me, why the integral of cos 2x is equal to sin2x /2 instead of 2sin2x, because the derivative of 2x is 2 and it's in the numerator so why are we writing it in the denominator

opalgidwani
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Hi! My teachers are asking me to solve this problem by parts, is that possible?

federicogonzalez
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0:59 Anyone know what rule this is? How did he know the integral of cos(2x) is [the derivative of cos(x)] / [derivative of x]?

clearflow
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Tysm
I kept finding sinx - ((sin^3)/3) +C
until i found this video

thelifeofibo
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Hello sire... I was wondering if you could do a video for me on Taylor series, mclauren series and distributed forces. I dont seem to understand it. I'll appreciate your reply

jagoayomikun
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may I have your help with this?
Find the position vector p relative to the origin O is 3i + 4j. Given that vector PQ = -7i + j,
a) Find the unit vector in the direction of vector OQ.
b) Find the position vector of the point N on PQ if PN: NQ = 3:2.
c) Let vector OP = u and vector = v, find the angle between u and v.

markmcsision-qbsf
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Is this the only way to solve this problem?

jav
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Wonderful visuals, well organized but I have audio problem

RanBlakePiano