$\lim_{x\to\pi}\left(x+\pi\right)\cot\left(x\right)$

$\int\left(x^5+2x^3\right)dx$

$\int\left(2x+3\right)\left(x^{2}+3x\right)^{2}dx$

$3t^2-4t+1$

$-\frac{72}{-12}$

$\frac{\tan^2\left(x\right)-\sec^2\left(x\right)}{\tan\left(x\right)}=-\cot\left(x\right)$

$8ywz^3\:\:;\:\:\:x=1\:\:;\:\:\:\:y=2\:\:\:\:;\:\:\:\:\:w=3\:\:\:;\:\:\:\:z=\frac{3}{2}\:\:\:$