$4\left(\sin60\right)+\frac{\cos60}{6}$

$\frac{1}{4}x^2-25y^2$

$\int_{\frac{\pi}{6}}^{\frac{\pi}{3}}\left(\left(1+\sin\:\left(3x\right)\right)\cos\left(3x\right)\right)dx$

$f\left(1\right)=\sqrt{51-2}$

$\frac{2x+1}{\left(x^2+1\right)\left(x-1\right)\left(x-3\right)}$

$\frac{\left(x^3+x^2\right)}{x-1}$

$\frac{dy}{dx}\left(3x^2+5x\right)$