$cos\frac{x}{2}-1=0$
$\frac{a}{2}-1.35=1.11$
$34x+10x$
$\left(-7\right)\:-\:\left(-9\right)$
$\lim_{n\to0}\left(\left(\frac{n}{2}\right)\left(\frac{\left(1-e^{-\frac{2}{n}}\right)}{2}\right)\right)$
$\frac{-x-1}{x-1}$
$\pi\:\int_{-1}^1\left(x^3+1\right)^2dx$
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