$\left(\frac{4\sin\left(\frac{x}{2}\right)+3\cos\left(\frac{x}{2}\right)e^{-x}}{4}\right)+\frac{\sin\left(\frac{x}{2}\right)+2\cos\left(\frac{x}{2}\right)e^{-x}}{2}$
$\frac{x}{3}-4=7$
$\int x^2\cdot sqrt\left(x-1\right)\:dx$
$\frac{0}{3}$
$\left(10+b\right)\left(10-b\right)$
$-\frac{1}{6}x\frac{2}{6}$
$\frac{9}{5}+2\cdot0.75+\frac{\frac{5}{7}}{2}$
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