$\lim_{x\to0}\left(\frac{\sin\left(t\right)}{t-\tan\left(t\right)}\right)$

$\ln\left(x+2\right)-\ln\left(7-x\right)=3\ln\left(2\right)$

$\frac{6x+8+1}{x+5}$

$\frac{2\sin\left(x\right)\cos\left(x\right)}{1-\cos2x}$

$\lim_{x\to3}\left(\frac{2x^2-7x+3}{x^3+3x^2-x+3}\right)$

$\left|-10+\left(-2-3\right)-5\right|+\left|-\left(-8\right)+2\right|$

$\int_{-1\:}^{1\:}\left(\frac{1}{\sqrt{1-t^2}}\right)dt$