let

show that

and show that

finally prove that

i cant seem able to show that f'(x)+g'(x)=0, i think its beacause i cant derivate g(x). Help plz

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- April 4th 2010, 11:17 AM #1

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- April 4th 2010, 02:47 PM #2

- April 4th 2010, 05:52 PM #3

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