$2sin^2x+3cosx-3=0$
$\frac{42x^3y^3z}{26x^4y^5z}$
$7x-1-7xy+y$
$\int\frac{1}{\sqrt{27+6y-y^2}}dy$
$2cos\left(arccos\left(x\right)\right)$
$x+12<3x-8$
$\left(2x+7a\right)^2$
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