$\sec^2\left(\csc^2-1\right)$
$25^2x^2+y^2$
$7m+8=-48$
$\left(3x+\frac{1}{6}\right)^2$
$\frac{d^4}{dx^4}\left(sinh\left(x\right)\right)$
$50x^2-32y^2$
$-\left(-11\right)^2$
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