$2\left(4^{3x-6}\right)-8=120$

$\frac{sec\:x\:tan^2x}{cot^2x\:csc\:x}$

$\lim_{x\to0}\left(\frac{sinx-x+\left(\frac{x^3}{6}\right)}{x^3}\right)$

$\int_{-1}^2\left(\frac{9x^3+3x^5-8}{x^2}\right)dx$

$45,42\cdot5,45$

$144\:^2$

$\lim_{x\to0}\left(\frac{1}{x^2}-\frac{1}{\sin\left(x\right)}\right)$