$x^3y'+x^2y=3x$

$\int2\sin\left(x\right)\cos^2\left(x\right)-\sin^3\left(x\right)dx$

$\int\frac{cos\left(x\right)}{sen^5\left(x\right)}dx$

$587-135$

$-4x^4+7x^3y+10xy^3;\:x=5;\:y=4$

$\lim_{y\to0}\left(\frac{in\:\left(cos\left(y\right)\right)}{55\left(y^2\right)}\right)$

$\sqrt{1+x^2},x=0$