$\int\frac{3}{e^x-e^{-x}}dx$
$9.8\frac{48.02}{25}$
$7+-3+2+-5+10$
$3x^2+\:15x\:-\:5\:=\:0$
$-3xy^2z^3+5xy^3$
$\lim_{g\to0}\left(\frac{\left|3+g\right|-\left|3\right|}{g}\right)$
$49x^2-21xy+14y^2$
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