find f'(x) by applying this formula:

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- Dec 3rd 2006, 04:28 AM^_^Engineer_Adam^_^Derivative Hellp meee!
find f'(x) by applying this formula:

- Dec 3rd 2006, 05:27 AMtopsquark
- Dec 3rd 2006, 06:13 AMThePerfectHacker
There should be a minus after you expand the sine. That might lead to an error in the end.

- Dec 3rd 2006, 11:00 AMtopsquark