$\frac{d^2}{dx^2}\left(e^a\cdot\cos\left(g\right)\right)$

$16a^2-b^2$

$2cot\theta\:=cosec^2\theta\:\:sin^2\theta\:$

$\lim_{x\to\infty}\left(\frac{3e^x-\frac{2}{e^x}}{2e^x+\frac{3}{e^x}}\right)$

$3w+2p-6=8$

$\int\frac{1}{t\sqrt{1-t^2}}dt$

$-\frac{csc\:t}{sin\:t}+\frac{cot\:t}{tan\:t}$