$\sqrt{4}+\sqrt{25}+\sqrt{49}$

$\lim_{x\to79.4}\left(\csc x\right)$

$2x^2\cdot\:\left(3x^4-2x^3+2x^2+5\right)$

$\frac{d}{dx}\left(e^{\sqrt{3x^2-1}}\right)$

$x^3-\frac{1}{2}x^2+8;\:x=0;\:y=-2$

$\tan\left(x\right)^2\:+\:\cot\left(x\right)^2-\csc\left(x\right)^2$

$365:5$