$\int_1^3\frac{e^u}{x^2}dx$

$\frac{sin\left(x\right)+tan\left(x\right)}{\left(tan\left(x\right)\right)\left(csc\left(x\right)+cot\left(x\right)\right)}$

$\left(sinx\right)\left(3cosx-1\right)=0$

$\left(6a^2-5\right)\left(6a^2+5\right)$

$6m^2n^4\left(4n^2+5m^{10}\right)$

$\sqrt{\sqrt[5000]{3.1416}}$

$\frac{dy}{dx}+y=\frac{1}{e^x}$