$\int\ln\left(\frac{1}{3}x\right)dx$

$\frac{d}{dx}\left(5x^2-\sqrt{x}\right)$

$\frac{d}{dx}\frac{e^w+1}{e^w}$

$\frac{d}{dx}\left(\left(x-7\right)^2+y^2=45\right)$

$\left|-100\right|-\left|15\right|$

$15+2\cdot\left(8-3\cdot5\right)$