0.5×2/3×0.75×0.8×5/6×6/7×0.875×8/9×0.9
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2020-09-12 · 知道合伙人教育行家
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0.5×2/3×0.75×0.8×5/6×6/7×0.875×8/9×0.9
=(0.5×2/3)×(0.75×0.8)×(5/6×6/7)×0.875×(8/9×0.9)
=1/3×0.6×5/7×0.875×80
=1/3×(0.6×5/7)×(0.875×80)
=1/3×3/7×70
=1/7×70
=10
=(0.5×2/3)×(0.75×0.8)×(5/6×6/7)×0.875×(8/9×0.9)
=1/3×0.6×5/7×0.875×80
=1/3×(0.6×5/7)×(0.875×80)
=1/3×3/7×70
=1/7×70
=10
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