$10\sec^2\left(25\right)$

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

$\pi\int_1^3\left(2x+2\right)^2dx$

$y=\frac{\sin^2\left(x\right)\tan^2\left(x\right)}{\left(x^2+2x\right)^3}$

$4.1\:10^6$

$4x+2<6$

$\left(\left(64^{-3^{-1}}\:+\left(-32\right)^{-\frac{3}{5}}\:\right)\right)^{-3^{-1}}$