1/24+1/120+1/360+1/840的解法,

学习 时间:2026-05-29 06:23:28 阅读:1633
1/24+1/120+1/360+1/840的解法,请哪位哥哥,

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2026-05-29 06:23:28

1/24+1/120+1/360+1/840=(1/24)(1+1/5+1/15+1/35)=(1/24)*(105+21+7+3)/105=(1/24)*(136/105)=17/315