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What is the first derivative of sec^2x? 
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#1
May1006, 07:37 AM

P: 127

i know that d(sec ax)dx = a tan ax sec ax... help?



#2
May1006, 07:48 AM

HW Helper
P: 2,954

Apply chain rule. Specifically, [tex]\frac{d}{dx}{(f(x))}^2 = 2f'(x)f(x)[/tex]



#3
May1006, 07:57 AM

P: 127

duh *slaps forehead* thanks!



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