$\int y^{-1}dy$
$2\:cos^2\theta\:\:-\:sin\theta\:\:-1\:=0$
$\frac{189}{9}$
$9x-12y$
$\lim_{x\to-4}\left(\frac{x^4}{\left(x+4\right)^7}\right)$
$\left(3x^2+2\right)\sin\left(x\right)$
$\cos\left(\frac{7}{401}x\right)$
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