Simplify the expression $x\left(10-x\right)=40$

Find the derivative

$\frac{d}{dx}\left(\sqrt{2}\sec\left(\pi \right)\right)$

Find the derivative

$\frac{d}{dx}\left(\pi ++100^2=0\right)$

Find the derivative

$\frac{d}{dx}\left(\pi \cdot100^2=0\right)$

Find the derivative

$\frac{d}{dx}\left(\pi +100^2=0\right)$

Find the derivative

$\frac{d}{dx}\left(\frac{1^2}{1^2+4}\right)$

Find the derivative

$\frac{d}{dx}\left(\pi \cdot 100^2=0\right)$

Find the derivative

$\frac{d}{dx}\left(\ln\left(2\right)\right)$