$\int\left(x^2+1\right)\cdot\sin\left(2x\right)dx$
$16m^4-81$
$\lim_{x\to6}\:\left(y-5\right)\left(y-7\right)$
$\frac{\pi}{1}$
$3x^2-6x-72$
$\lim_{x\to0}\left(xsin\left(\frac{11}{x}\right)\right)$
$1+\frac{2}{5}q+\frac{1}{25}q^2$
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