$\frac{1}{\tan\left(90-x\right)}$

$2m+2m-m$

$\left(v+5u\right)^3$

$26-\left(-26\right)$

$\int\cos\left(26x\right)e^{6x}dx$

$\int_3^{\infty}\left(\frac{2}{\sqrt{x-2}}\right)dx$

$\left(\sin\:^2\left(x\right)cos^2\left(x\right)\right)+\sin^2\left(x\right)\cos^2\left(y\right)$