$\lim_{x\to\frac{\pi}{2}}\left(\frac{\cos\left(x\right)\csc\left(x\right)}{8x-4\pi}\right)$

$f\left(1\right)=\frac{x^2-2x+1}{x-1}$

$\int\:\frac{ln^8\left(x\right)}{x}dx$

$\frac{dy}{dx}\left(\frac{y^2-1}{x^2-1}\right)$

$\frac{1}{4}\left(2x+1\right)-x<\frac{x}{6}-\frac{1}{3}$

$3x^3+4x^3$

$\left(a+b^2\right)+1=\left(a+1\right)\left(b+1\right)$