$\lim_{x\to\infty}\left(\sqrt{x+2}-\sqrt{x}\right)$
$\frac{d}{dx}2x^3\cot\left(x-y\right)+4^{2x-3y}=1$
$2x^2+4x-16$
$3a^2-2ac+3e\:;\:a=2;c=3;e=5$
$y'=3x+5$
$\int-2y\:dx$
$5x^7y^3z^{-2}\left(3xy^4z\right)$
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