$1+\tan^{2}\theta$
$16\cdot3-10\cdot2$
$\sqrt[3]{1+7}$
$\left(3-2x^2\right)^3$
$\frac{ds}{dr}=e^{r-2s}$
$1-cot^2x-csc^2x$
$\sqrt{456-123}$
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