$1-sin^2x-\frac{\cos\left(x\right)}{1+\sin\left(x\right)}=\tan\left(x\right)$

$x+x+2+x+5$

$\left(\frac{1}{2+x}\right)\frac{dy}{dx}=\left(3-4y\right)$

$\left(\frac{1}{\sqrt{\:2}}x+\frac{1}{\sqrt{6\:}}y+\frac{1}{\sqrt{3\:}}\right)^2$

$\sin\left(x\right)\cdot cos\left(x\right)=0$

$\int\frac{4x^2+12x-12}{x^3-4x}dx$

$\int_{-\infty}^1\left(4e^{-3x}\right)dx$