$\lim_{x\to\pi}\left(\frac{\sin\left(x-1\right)}{x^2-3x+2}\right)$

$x^2-10+24$

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

$ln\left|csc\right|+ln\left|cos\right|$

$\lim_{n\to\infty}\left(\frac{\sqrt{n+2}}{\frac{1}{\sqrt{n}}}\right)$

$\left(\sqrt{2x}\right)\left(\sqrt{2x}\right)$

$x^2+15x+54$