$\left(1+2+\sqrt{1^2+2^2}\right)\left(1+2-\sqrt{1^2+2^2}\right)$
$4sin\left(2\left(t\right)\right)\left(1-2sin^2\left(t\right)\right)+\:3\:-\:6sin^2\left(\frac{t}{2}-\frac{\pi\:}{2}\right)$
$x^2-5x+6\ge0$
$1776.241633-8\cdot\frac{14\sqrt{7}-10\sqrt{5}}{3}$
$\frac{x}{8}-3=2$
$\lim_{x\to0}\left(x\cdot in\left(x\right)\right)$
$1-2ab-\left(a^2+b^2\right)$
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