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

$m^4+2m^2+9$

$sin\left(x\right)+x+sin\left(2x\right)+x$

$\frac{1}{2}m^2n+\frac{1}{3}m^2n+\frac{1}{4}m^2n+\frac{1}{6}m^2n$

$4x\:+\:3y\:+5\:+2x\:+\:3y\:+\:1$

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

$logx=3$