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What is the derivative of #f(x)=ln (x^2+2)#?

1 Answer

Jul 8, 2016

Using the chain rule on #f(x) = ln(x^2+2)#, we let

#u=x^2+2#, so #du=2x#, so #f'(x) = (2x)/(x^2+2)#.

Explanation:

We've used the definition #d/dx[ln(u)]=(du)/(u)#.

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