$\left(\frac{\sin\left(x\right)}{\cos\left(x\right)}\right)^2+\left(\frac{1}{\csc\left(x\right)}\right)^2$

$\int sin\left(ln\left(x\right)\right)dx$

$y^{'\:}=\frac{-\left(3y^2+1\right)x}{x^2+1}$

$6x^{4}-4x^{3}y^{3}-x^{2}y^{2}$

$\lim_{x\to0}\left(cos\left(x\right)+sin\left(x\right)\right)$

$\int x^2ln\left(ex\right)dx$

$\int\left(0.04t+200\right)e^{-0.04t}dt$