$-113\cdot4$
$\left(1-\tan\left(a\right)\tan\left(b\right)\right)$
$6^{2\cdot3}$
$\int\frac{2}{x^3\sqrt{x^2-9}}dx$
$5x-7<=16x+1$
$x^2+1>x^2+x-3$
$\left(2x-3\right)\left(x+1\right)=0$
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