$5x^2-2x>8+4x^2$
$sen\left(x^3\right)-2sen\left(x^2\right)cos\left(x^2\right)$
$15+7+-1+9$
$5=\frac{g}{8}$
$\frac{2sinx-sin2x}{1-cos2x}=\frac{sinx}{1+cosx}$
$56-8x=6x$
$\frac{d^2x}{dt^2}=-2$
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