My attempt-

Here I believe I have two options.. not sure which one to go with if either..

or

just trying to get it to simplest terms.

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- Sep 17th 2008, 05:34 PMNotEinsteinDerivative problem

My attempt-

Here I believe I have two options.. not sure which one to go with if either..

or

just trying to get it to simplest terms. - Sep 17th 2008, 05:44 PMskeeter
do you know how the chain rule works?

I'll leave the very little bit of possible simplification to you. - Sep 17th 2008, 05:48 PMjavax

I don't think it can get any simplier. - Sep 17th 2008, 05:49 PMjavax
- Sep 17th 2008, 05:50 PMNotEinstein
just learned it yesterday.. guess this is good practice. only question. why after you took the derivative of the outermost term, did you put * (-2cotx ...)? i understand that you brought the 2 to the front using the power rule.. but wouldn't it stay positive?

EDIT: Nevermind, i understand now. Thank you - Sep 17th 2008, 05:56 PMskeeter
chain rule inside the chain rule ...

the derivative of is

- Sep 17th 2008, 06:39 PMjohn doe
I think you made a mistake you squared the cot