$\frac{60.59}{59.48}$
$\left(s^2-1\right)^{\frac{5}{2}}\:\left(s^3-5\right)$
$7k-6k-2-9$
$\left(-2-3y\right)\cdot\left(6-y\right)$
$\lim_{x\to0}\left(\frac{2-\left(e^x+e^{-x}\right)\cos x}{x^4}\right)$
$2\left(-1\right)^2-2\left(-1\right)\:$
$\frac{d}{dx}y=\frac{e^x}{1+e^x}$
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