$-9-\left(1-\left|-2-\left(-3+7-9\right)+4\right|-2\right)-5$
$\frac{d}{dx}\left(y\:=\:\left(sin\left(9x\right)\right)2x\right)$
$\frac{sin\theta\:}{cos\theta\:}$
$-16x^{2}+54x-18$
$\int t\left(2+t^2\right)^3dt$
$\int\left(24\left(x+2\right)^{-2\ }\right)dx$
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