$\cot^2x=\csc^2x-1$
$-4\:\cdot8$
$5x+3=-27$
$-8x^3-30x^3$
$\sqrt{-3^2-2\left(-3\right)-24}>-3$
$\left(m^3-2y\right)^5$
$\int\frac{x^2+x}{\sqrt{x^2+4}}dx$
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