$\cos\left(a-b\right)=270$
$2y\:dx\:+\:e^{-3x}\:dy\:=0$
$45+89+244$
$\int\frac{3x^2-7x-2}{4x^2}dx$
$y^2-6y+22$
$\frac{3y}{4}+\frac{y}{2}-\frac{y}{3}$
$4^4\sqrt{ab^5c^6}$
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