$-\left(4-2+9-8-3+1\right)+\left(-2-4+3\right)$

$\frac{dy}{dx}=4xy^3$

$h\left(x\right)=5sec\left(\frac{\pi}{4}\left(x+1\right)\right)$

$\int\frac{1}{\sqrt{6x-x^{2}}}dx$

$2x^2y^3+4x^3-6y^2$

$\lim_{x\to0}\left(4x^2\ln\left(3x\right)\right)$

$\lim_{x\to0}\:\:\frac{2x^3}{x-senx}$