Sunday
April 20, 2014

Homework Help: Calc

Posted by CMM on Sunday, October 24, 2010 at 11:17pm.

If f(x)= sec x, find f"(Pi/4)

I am not sure how to take the 2nd derivative?

f'(x)= sec x tan x
f"(x)=???

Is it f"(x)= (sec x tan x)(sec^2x)???

Please Help!

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