$\sin\infty\cdot\sec\infty=\tan\infty$
$\int\frac{8}{2x+5}dx$
$3x+5-6$
$\frac{1-\sin y}{\cos y}=\frac{\cos y}{1+\sin y}$
$\sqrt{75y^{10}}z^7$
$\left(8^6^2\right)$
$w^2-9w+20$
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