$\left(cscx+cotx\right)\left(secx-1\right)$
$133-\left(-7\right)$
$2\left(2n\right)$
$\frac{\tan\left(x\right)}{1-\tan\left(x\right)}+\frac{\cot\left(x\right)}{1-cot\:x}$
$16x^2^2-225$
$\sqrt[6]{16x^4}y^8z^{10}$
$\frac{63\cdot\:\:0.39942}{2\pi}$
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