$\int5\pi u^3du$
$4m^2n+7mn$
$1.25\cdot2.44$
$\frac{\cot\:\theta\:}{cos\theta\:}$
$9x^2-16x+72$
$3\:+\:2^3\:-4\:+1^2\:+\:3$
$144\cdot6$
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