$\tan\left(a\right)\cdot\cot\left(a\right)\cdot\sec\left(a\right)=\frac{1}{\cos\left(a\right)}$

$\frac{\left(\left(x-2\right)^n\right)}{n\left(n+1\right)}$

$\int_1^{\infty}\left(x\:lnx\right)dx$

$\frac{dy}{dx}\left(-\sin\left(y\right)\right)$

$\frac{m^3}{8}+\frac{n^3}{27}$

$8x^2y^{-6}z^0$

$\left(2m-2\right)\left(2m+9\right)$