http://i48.tinypic.com/2s1165i.jpg

so the answer is s/b (should be) on lower right, no idea how they got there, anyone know where I went wrong, thanks?

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- Feb 5th 2013, 01:51 PMtogotrying to get right answer on derivative
http://i48.tinypic.com/2s1165i.jpg

so the answer is s/b (should be) on lower right, no idea how they got there, anyone know where I went wrong, thanks? - Feb 5th 2013, 02:57 PMPlatoRe: trying to get right answer on derivative
- Feb 5th 2013, 04:00 PMProve ItRe: trying to get right answer on derivative
- Feb 5th 2013, 08:56 PMhollywoodRe: trying to get right answer on derivative
The problem seems to be to take the derivative of , for which the correct solution is . That's e times in parentheses.

I don't follow your solution starting at the second line - it looks like it should be (not ), and I don't get the stuff in brackets at all.

The solution to this derivative is pretty straightforward - just use the chain rule and work from the outside in:

: the derivative of is , so use the chain rule

: bring out the constant e and cancel

: the derivative of is , so use the chain rule

: the derivative of is

- Hollywood