$\frac{dy}{dx}+sen\left(x\right)y=0$

$\int\left(\frac{secx^2}{tan^2x+15tanx+56}\right)dx$

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

$\left(b+7\right)\left(2b-7\right)$

$\lim_{x\to\pi}\left(\frac{sin^2\left(x\right)}{1-cos\left(4x\right)}\right)$

$\int\:\frac{e^x}{\left(e^x+1\right)^2\left(e^{2x}+1\right)}dx$

$xp\left(x+\frac{x}{x+qx}\right)$