$cot\left(x\right)=cos\left(x\right)sin\left(x\right)+cos^3\left(x\right)csc\left(x\right)$

$cos=\left(\frac{\sqrt{3}}{3}\right)$

$2\left(3t+1\right)^3-2\left(3t+1\right)^2-\left(3t+1\right)+10$

$\left(y^2-3\right)^2$

$\int g\left(5x-2\right)dx$

$\left(3t\:+\:5x\right)^2\:$

$\int\frac{x^3+x+1}{x\left(x-1\right)^2}dx$