$\int\frac{\sin\left(x\right)^3}{\cos\left(x\right)\cdot\left(1+4\cos\left(x\right)^2\right)}dx$

$2\left(5-7x\right)\ge52$

$\lim_{x\to0}\left(8x^{\left(sin\left(7x\right)\right)}\right)$

$\left(t^3\right)^3$

$x^2-12x+27\le\:0$

$2cos^{\left(2\right)}\theta\:-1=\:cos^{\left(4\right)}\theta\:-sin^{\left(4\right)}\theta\:$

$x^4y-8x^4y-21x^4y$