$sec-2\sqrt{3}=4sec$
$a^2bc+ab^2+abc^2$
$-9-35+22-9+7-9-8$
$\frac{\sec\left(x\right)}{\sqrt{1-\cos^{2}\left(x\right)}}$
$\int r^2sin\left(\theta\right)\:dr$
$x\left(x+5\right)\left(x+4\right)$
$x\:-\:2\:<=\:2x\:-5$
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