$\int\frac{1}{2}sen\left(\frac{1}{3}x+3\right)\cdot cos\left(-\frac{1}{2}x\right)dx$

$x\cdot y'\:-\:3\:=\:0$

$2\left(3-7\right)$

$\frac{3}{\sqrt[2]{3}}-\left(5+\sqrt[2]{3}\right)$

$\frac{\left(2sinxcosx-1\right)}{cosxsinx}$

$\lim_{x\to0}\left(\cos\left(x\right)\right)^{\frac{1}{x^3}}$

$\lim_{x\to-5}\:\left(x+5\right)ln\left(x+5\right)^2$