$x^5y'-y^{-5}=0$

$\lim_{x\to-2}\frac{x^2+5x+6}{x+2}$

$cos2\theta\:+10cos^2\theta\:-8=0$

$\int\:\:\frac{-2}{\left(x^2\:+\:2\right)^{\frac{3}{2}}}\:dx$

$\int\frac{10x^3}{\sqrt{x^2+9}}dx$

$\frac{2x^3-x^2+2}{x^2-x}$

$6\cos\left(x\right)\tan\left(x\right)+5\tan\left(x\right)=0$