$\tan\left(\frac{\pi}{6}\right)\cdot\csc\left(\frac{\pi}{6}\right)$

$\int\csc^2\left(2o\right)\cot\left(2o\right)do$

$\frac{2x^3-5x^2+11x+6}{x-4}$

$\left(\frac{\cot\left(a\right)\tan\left(a\right)^2}{\sin\left(a\right)}\right)$

$\frac{3.50}{2.50}$

$\left(y^2-1\right)dx=xdy$

$\sqrt{2}\cdot x^4-2\cdot\sqrt{2}\cdot x^4$