Will someone please tell me if I am doing this problem correctly?

http://i244.photobucket.com/albums/g...g?t=1238203802

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- March 27th 2009, 05:30 PMrobascthe chain rule using trigonometric functions
Will someone please tell me if I am doing this problem correctly?

http://i244.photobucket.com/albums/g...g?t=1238203802 - March 27th 2009, 06:26 PMScott H
You are close.

The correct derivation is

- March 27th 2009, 06:30 PMmollymcf2009
- March 27th 2009, 07:51 PMrobasc
oops! the plus sign was just a mistake but I still am not getting why I should have to use the chain rule further, is this to simplify a bit more?