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# Find the second order derivatives of the functions given in Exercises 1 to 10. log x

Q4   Find the second order derivatives of the functions given in Exercises 1 to 10.

$\log x$

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Given function is
$y=\log x$
Now, differentiation w.r.t. x
$\frac{dy}{dx}=\frac{1}{x}$
Now, second order derivative is
$\frac{d^2y}{dx^2}= \frac{-1}{x^2}$
Therefore,  second order derivative is $\frac{d^2y}{dx^2}= \frac{-1}{x^2}$

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