Find the second order derivative of the following :

$e^{2x}·\tan x$

Find the second order derivative of the following :

$e^{4x}·\cos 5x$

Find the second order derivative of the function : $\log \left(\log x\right)$

find the second derivative of the given functions.

Find $\frac{d^{2}y}{d{x}^2}$ of the following :

$x=a\left(\theta -\sin \theta \right),y=a\left(1-\cos \theta \right)$

If $x=2a{t}^2$,$y=4at$ find $\frac{d^{2}y}{d{x}^2}$.

Find $\frac{d^{2}y}{d{x}^2}$ of the following

$x=\sin \theta ,y={\sin }^3\theta$ when $\theta =\frac{\pi }{2}$

Find $\frac{d^{2}y}{d{x}^2}$ of the following

$x=a\cos \theta ,y=b\sin \theta$ at $\theta =\frac{\pi }{4}$