$2x^{-1}$
$\int\:2x^3\:\sinh\left(x^2\right)dx$
$\left(\sqrt{a^2}\right)^2$
$3\left(-2\right)\left(2-6\right)+7$
$\frac{\tan^2\left(f\right)}{\sec^2\left(f\right)}=\sin^2\left(f\right)$
$\frac{x}{x^2}+2$
$.5^3$
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