$\sin^2\left(150\right)+\cos^2\left(30\right)$
$\int\sqrt[2]{x^2-3}dx$
$\lim_{x\to3}\left(\frac{-2}{x-3}\right)$
$a-b\:ao\:cubo\:$
$9x^2+7x+5-3x^2+5x-2$
$\frac{dy}{dt}=\frac{t}{y^2}$
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