Hey, can someone help me find the primitive of:

the answer is

EDIT:

But how did they get - cotx

Thanks in advance

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- September 25th 2009, 06:13 PMdifferentiatefind the primitive of cosec^2(x)
Hey, can someone help me find the primitive of:

the answer is

EDIT:

But how did they get - cotx

Thanks in advance - September 25th 2009, 06:35 PMVonNemo19
- September 25th 2009, 06:46 PMCalculus26
I agree completely with VonNemo however if you want to know why your method didn't work

http://www.mathhelpforum.com/math-he...31b739b6-1.gif = -tan(pi/2 - x)

Since you would let u = pi/2 - x (use radians always in Calculus)

du = -dx

result follows - September 25th 2009, 06:48 PMVonNemo19
Hey Calculus26, why don't you ever use latex?

- September 25th 2009, 11:07 PMdifferentiate
Thanks guys