$41.042+87.5672+168.0012+301.8976$
$x^2-4x-2y+5=0$
$\frac{3}{x^3+x-2}$
$cot\left(\frac{\pi}{2}-\left(x\right)\right)\cot\left(x\right)=1$
$4x+1+1$
$9y+30+25$
$\frac{9m^5n^6}{3m^7n^6}$
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