$\left(-2\right)^{12}$
$121a^2-16$
$\frac{ds}{dr}=e^{r-2s}$
$\left(\cos\left(x\right)+3\sin\left(x\right)\right)^2=5-4\cos\left(2x\right)+\sin\left(2x\right)$
$4x+8<32$
$-15\cdot\left(-2-2\right)$
$4.42543+\left(0.1\right)\cdot\left(1.2\sqrt{4}.42543\right)$
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