AP Calc Question.. sorry

[joshb110]

<p>Sorry to ask... but after taking AP tests all day and then an economics test, my brain is dead and i am not sure how to do this... :-/</p>

<p>Let f(x) = g(h(x)), where h(2) = 3, h'(2) = 4, g(3) = 2, g'(3) = 5. Find f'(2)
A) 6
B) 8
C) 15
D) 20</p>

<p>Thanks! = )</p>

[drinkingmilkalldaylong]

<p>answer should be d.</p>

<p>the chain rule g'(h(x))h'(x)=20.</p>

[joshb110]

<p>... wow i am brain dead.... thanks lol :)</p>