$4cos^2\left(x\right)-cos\left(x\right)-2$
$\sqrt{2x^2}+7x+3$
$10=7-m$
$\left(3-1\right)\left(-5+5\right)$
$\frac{d}{dx}y=\sqrt{\frac{3x}{x+1}}$
$3xvdv+\left(2v^2-1\right)dx=0$
$\sqrt{x^{19}}\cdot x^{10}$
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