$2g^2-x=10$

$\frac{\sin\left(x\right)-\cos\left(x\right)}{\cos\left(x\right)}+\frac{\cos\left(x\right)-\sin\left(x\right)}{\sin\left(x\right)}$

$\left(-2\right)\cdot\left(+7\right)+\left(+5\right)\cdot\left(+6\right)$

$\frac{dy}{dx}\left(x^2+2y^2=6x-16y+11\right)$

$\cos\frac{\sqrt{5}}{3}$

$x^2y'+xy=x$

$\lim_{x\to0}\left(\pi\:x\:-\sin\left(x\right)\right)$