$z^{\frac{4}{6}}$

$4\left(x+7\right)<2\left(3x-4\right)+11$

$-12-3-7+4-2+1+5$

$\int\frac{\cos\left(x\right)}{\sin\left(x\right)+\sin^2\left(x\right)}dx$

$\left(\frac{1}{4}\:+\frac{x}{3}\right)\left(\frac{1}{4}\:-\:\frac{x}{3}\right)$

$\lim_{x\to-2}4\left(x+1\right)$

$\lim_{x\to0}\left(\frac{7}{x}\right)^{4x}$