$\left(\frac{\left(4\cdot\frac{5}{9}:3\right)^{-2}}{\left(\frac{5}{2}\right)^3\cdot\left(\frac{3}{7}\right)^{-1}}\right)^{-1}$
$cos3x\:=\:-1$
$x^2+10x-24$
$x^2\:+\:x\:>12$
$x^2+6x-168=0$
$\int\frac{\sin\left(x\right)}{x}dt$
$17\:+21+\:18\:+27+\:17\:21+\:20\:+22\:+18+\:23$
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