$9x^2+2xy^2=-4$

$2sin\left(x-\frac{\pi}{11}\right)-1=0$

$y\:+\:\frac{5}{6}+-\frac{1}{6}$

$\sin\left(x\right)^2\left(\tan\left(x\right)\right)+\left(\cos\left(x\right)\right)\left(\sin\left(x\right)\right)=\left(\tan\left(x\right)\right)$

$49+11-11-9-1-8+7$

$\frac{dy}{dx}=x\cos\left(y\right)^2+\sin\left(x\right)\cos\left(y\right)^2$

$\left(3m^2\right)\left(-2m\right)\left(m^3\right)$