$\frac{x-1}{\sqrt{3x}-2-1}$

$8x-2+-2+-2+-2+-2+-2+-2+-2+-2+-2$

$\frac{dy}{dx}=y^2cot\left(2x\right)$

$\int\frac{\left(2x^2-18x-6\right)}{\left(x^2-9\right)\left(x-5\right)}dx$

$\lim_{x\to0}\left(\frac{e^{x^2}-1}{x^2}\right)$

$\frac{d}{dx}4x^3.\arctan x$

$\lim_{y\to1}\left(\frac{1-y}{1-y^3}\right)$