$\int e^{-t}\:\cos\:4t\:dt$
$\frac{1+\sec\left(y\right)}{\tan\left(y\right)}+\frac{\tan\left(y\right)}{1+\sec\left(y\right)}=2\csc\left(y\right)$
$\int\left(x^3+x^2+5\right)dx$
$\frac{2}{x}\frac{2}{e^{x}}$
$6\cdot15\cdot8.5$
$-26r+7r-15p-7p$
$\left(3pa\right)^8$
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