$4\sin^2\left(x+30\right)=1$
$\frac{d}{dx}5x^{-7}$
$\left(a^2-x^3\right)^2$
$7.\infty$
$4x+3\ge5x-8$
$\:\left(raiz\left(x^2+3x\right)\right)^3$
$\int8\cos^24\theta\:\sin4\theta\:\:d\theta\:$
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