$\frac{x^3\:-\:8}{x-2}$
$\lim_{x\to0}\left(\frac{1-\cos\left(x\right)}{\sin\left(3x\right)}\right)$
$\left|+6\right|+\left|+6\right|$
$a+b+b-a$
$\:\int\left(xcos\left(xy\right)\right)dy$
$\frac{\sin b}{\csc b}+\frac{\cos b}{\sec b}=1$
$y+y+2f$
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