\frac{2.0}{(1.9-1.8)\times(1.7-1.6)\times(1.5-1.4)\times(1.2\times1.1-1.3)}=100000
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  1. http://formula.s21g.com/?%5Cfrac%7B2.0%7D%7B(1.9-1.8)%5Ct...
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