$\int\frac{\left(cos^{-1}\left(x\right)\right)^7}{\sqrt{1-x^2}}dx$

$\frac{2x+1}{x^2+10x}$

$\lim_{x\to1}\left(\frac{x^a-ax+a+1}{\left(x-1\right)^2}\right)$

$5\frac{1}{3}n^2^{+x}-7\frac{1}{2}m^3^{+2x}$

$\int2\cdot\left(\frac{11}{2\sqrt{x}}+\frac{4}{3x^{\frac{2}{3}}}\right)\cdot\left(11\sqrt{x}+4x^{\frac{1}{3}}\right)$

$0x\:+\:x$

$2x^2+5x>8-x$