$-x+2\ge-1$
$49x^270x+10y^2$
$\csc^2x+4\csc x-12=0$
$2a+3b-7=15$
$\lim_{x\to\frac{\pi}{2}}\left(tan\left(x\right)\right)\cdot\ln\left(\sin\left(x\right)\right)$
$\int\frac{-2x+6}{x\left(x^2-1\right)}dx$
$6+8+12$
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