$\left(4x+4y\right)^2$
$-6-x\ge0$
$\int\frac{6x+20}{6x^2+7x-3}\:dx$
$m^42m^{-3}$
$\int_0^1\:\frac{-1}{x-4}dx$
$\tan a\left(\frac{8}{15}\right)$
$\lim_{x\to1}\left(\frac{\arccos\left(x\right)}{x-1}\right)$
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