$\log\left(3n+4\right)=2$
$\frac{\pi}{-\frac{\pi}{w}}$
$90-\left(-46\right)$
$-4\tan x-2=6$
$y-y$
$-2x^3y^2^az^4$
$\left(+25\right)x\left(-5\right)$
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