$\frac{sec\theta\:\:tan\theta\:}{cot\theta\:\:csc\theta\:}$

$\lim_{x\to\left(0\right)}\left(1-sin\left(5x\right)\right)^{\frac{2}{x}}$

$5a^2-2a+\:12$

$5\left(x+2\right)-3=2\left(x+5\right)$

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

$\lim_{x\to\infty}\left(1+\frac{1}{x+2}\right)^x$

$-26+39+-10+-16+12+31$