$2020\left(2020\right)$
$3m+3n=15$
$4\left(-112\right)$
$\left(2x^2+5\right)\left(3x^3+2\right)$
$\left(2x-6\right)\left(4x-7\right)$
$\int_0^{15}1100e^{-0.02x}dx$
$\:\frac{\csc\left(x\right)+\cot\left(x\right)}{1+\cos\left(x\right)}=\csc\left(x\right)$
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