$\sqrt[3]{a^2}$
$\left(tanx+1\right)\left(\sqrt{3}tan\:x-1\right)$
$\:2\left(3r+4\right)+3\left(r+5\right)$
$\frac{x}{9}\le-2$
$\lim_{x\to\frac{-\pi}{2}}\left(4tanx-4secx\right)$
$\left(x^3+3x^2+3x+1+1\right)$
$809.787375+1.357123375$
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