$sin\:3d\:cos\:2d$
$tan2x+1=0$
$\frac{\sin\left(a\right)}{\cos\left(a\right)}=\tan\left(a\right)$
$-98+1$
$\lim_{t\to0}\left(\frac{-3sin\left(6t^7\right)}{2t}\right)$
$\left(2n+3\right)\cdot n\cdot\left(n+1\right)$
$4x^2-9y^{10}z^2$
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