$\lim_{x\to2}\left(\frac{tan\left(x-2\right)}{2x^2-2}\right)$
$\left(4a^4-5b^6\right)^2$
$70\::\:-12$
$8m^3-27y^3$
$\int\:x\:^3\sqrt{3x+2}dx$
$97a^3^2\:-\:+32$
$y=arcos\left(\left(x^2+1\right)^{-\frac{1}{2}}\right)$
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