# Second Derivatives

If y = 2 f(g(x)), then d2y/dx2 = ? The d2y/dx2 means the second derivative, I believe.

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1. dy/dx=2 f'(g(x))
d"y/dx"=2f"(g(x))

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👨‍🏫
bobpursley
2. Wouldn't you have to apply chain rule and take g(x) out of the parentheses and then multiply it by everything else?

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