$\cos\left(x\right)\tan\left(x\right)-\cos\left(x\right)$

$\sqrt{26+5}$

$\frac{d}{dx}\:\frac{3e^x}{x^2+5}$

$\lim_{x\to1}\left(\frac{1}{\ln\left(x\right)}\right)$

$xy^2+x^2y^4z+zx^2y^3$

$\int2x\left(x^2+1\right)^6dx$

$\left(4m+\frac{1}{2}\right)\left(4m+\frac{1}{2}\right)$