$\tan\left(c\right)+\cot\left(c\right)$

$\frac{dy}{dx}=0.08x\left(1-\frac{y}{1000}\right)$

$\lim_{x\to2}\left(\frac{x^2-3x-10}{x^2+x-6}\right)$

$\int x\ln\left(x\right)\left(1-x^2\right)^{\frac{-1}{2}}dx$

$\sqrt[4]{x^2y^2z^2}-2\sqrt[4]{x^2y^2z^2}-\sqrt[4]{x^2y^2z^2}$

$\left(x+1\right)\left(x-6\right)\left(x-31\right)$

$\int\frac{1}{\sqrt{196-x^2}}dx$