$b^3.b^7.b^{12}$
$x^2+\frac{1}{3}x+3x+1$
$17+x<-6$
$\int_{-\infty}^04e^x\sin\left(x\right)dx$
$\left(csca-1\right)\left(csca+1\right)=cot^2\:1$
$4 ( z + 2 ) = 3 ( z + 1 )$
$\left(-12-+18\right)+21-32\left(-43-12\right)$
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