$\int x^2\sin\left(5x^3+9\right)dx$

$si\:a+b+c=0$

$9x+3+2\left(x+2\right)<-6x$

$\frac{d}{dx}\left(\frac{cosh\left(x\right)}{senh\left(x\right)}\right)$

$\frac{2^{-3}}{m^0n^{-1}}$

$\lim_{x\to\infty}\left(\frac{e^{\sqrt{lnx}}}{x^5}\right)$

$\int_0^{\pi}sen\left(2t\right)dt$