$\frac{d}{dx}\sqrt{\frac{tanx}{x^3-4x+7}}$
$-2r\:=\:16$
$\sqrt[7]{x}^4$
$77\left(-7\right)\left(-1\right)$
$x^2-12x+1225-0$
$-4\cos^2-4\cos-1$
$\int\left(\sin\left(2m\right)\right)dx$
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