$\int_1^{\infty}\left(\frac{1}{1+cosx}\right)dx$

$11a^{3}+a^{3}+a^{3}$

$5\sqrt[3]{27}$

$\left(\frac{9}{4}x+\frac{1}{\:3}\right)\:\left(\frac{9}{4}x-\frac{1}{2}\right)$

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

$2z\:+\:4z\:+\:8z$

$\frac{dy}{dx}=\frac{y^3}{\sqrt{x+2}}$