Monday
April 21, 2014

Homework Help: Calculus

Posted by Kelly on Sunday, October 2, 2011 at 1:47pm.

find f'(a) for f(x)=1/sqrt(13-7x)

i got my answer to be 7 / (7(13-7x)sqrt(13-7x))
but it says i am wrong

please help

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