How do you find f''(x) if $f'(x)=tan5x+x^2$ ?

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Answer 1 · 2017-02-12T09:39:44

Take the derivative of the derivative to get the second derivative.

Take the derivative of $tan(5x) + x^2$

= $5sec^2(5x) + 2x$

Using the power rule. Don't forget the chain rule for the derivative of $tan(5x)$ .

How do you find f''(x) if f'(x)=tan5x+x^2f'(x)=tan5x+x^2?