$\lim_{x\to\infty}\left(sin\left(x\right)\right)$

$\sqrt{4x^2}\cdot\sqrt{28x}$

$\int\left(\frac{2x}{x^2-2x+5}\right)dx$

$2x^2-12x+16$

$\left(\left(\frac{1}{2}m-\frac{2}{3}n-\frac{1}{4}\right)\right)\left(\frac{1}{2}m+\frac{2}{3}n-\frac{1}{4}\right)$

$\lim_{x\to0}\left(\frac{\left(x\right)}{-\tan\left(x\right)}\right)$

$5^2\cdot5^5$