$\sqrt{27}+5\sqrt{3}-2\sqrt{12}$

$\lim_{x\to-7}\frac{2x^2+13x-7}{x+7}$

$\frac{d}{dx}arc\cdot\:cosh\left(cose^x\right)$

$\left(\frac{1}{2x}\right)^2$

$x+2<0$

$5.\left(x-\frac{3}{2}\right)\le3.x+\frac{1}{2}$

$\lim_{x\to0}\left(\frac{\left(x\right)}{\tan\left(x\right)}\right)$