$\frac{\left(-cos^2x-2sin\left(x\right)\right)}{cos^2\left(x\right)}$

$\left(\frac{m}{5}+3n\right)^2$

$\frac{dy}{dx}\left(y-5\right)=3$

$\int\left(\sqrt{1+e^2}\right)dx$

$\left(xz-ab\right)\left(xz+ab\right)$

$\int_1^{\infty}\left(\frac{1}{x\left(\sqrt{\left(x^2+1\right)}\right)}\right)dx$

$\left(w^3\right)^7$