$\lim_{x\to0}\left(1-\tan\left(2x\right)\right)^{\frac{4}{x}}$

$xz+xyz-5=0$

$\frac{1}{\cot\:\left(x\right)^4}=\left(\sqrt{se}+1\right)^2$

$\left(-4xy\right)^{\frac{1}{3}}\left(2x^2y^4\right)^{\frac{1}{3}}$

$-2<-\frac{3y}{5}+2$

$\sec\left(x\right)=-\frac{3}{2}$

$\frac{m^5-32}{m+2}$