$\lim_{x\to6}\left(\frac{x+6}{\left(x-6\right)^4}\right)$

$9x+2=110$

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

$\frac{dy}{dx}=\frac{-2y}{100-x}+\frac{1}{20\left(100-x\right)^2}$

$\:20\:.\:2\:.\:22\:.\:23\:$

$\int\frac{3}{\left(6x+5\right)^{\frac{5}{4}}}dx$

$13x\:-\:2\left(3x+6\right)$