1/2+1/6+1/12+1/20......1/110怎样计算?
答案:4 悬赏:60
解决时间 2021-04-27 13:39
- 提问者网友:失败的占卜者
- 2021-04-27 01:11
1/2+1/6+1/12+1/20......1/110怎样计算?
最佳答案
- 二级知识专家网友:零负荷的放任
- 2021-04-27 01:53
4-1/..;11
=10/2-1/2+(1Ǘ/..;10-1/5)+;11)
=1/3-1/3)+(1/11
=1-1/2+1/.;2-1/.+(1/4)+(1/
=10/2-1/2+(1Ǘ/..;10-1/5)+;11)
=1/3-1/3)+(1/11
=1-1/2+1/.;2-1/.+(1/4)+(1/
全部回答
- 1楼网友:荒唐后生
- 2021-04-27 04:00
+1/.1/10-1/2-1/...;3-1/11
=10/6+1/2+1Ǘ/20;3+1/12+1/110
=1-1/.;4-1/2+1/.;4+1/.;5+.;11
=1-1/
- 2楼网友:情窦初殇
- 2021-04-27 02:40
2=1*2
6=2*3
20=4*5
=1-1/2+1/2-1/3+1/3-1/4......+1/10-1/11
=1-1/11
=10/11
- 3楼网友:浪者不回头
- 2021-04-27 02:14
1/2+1/6+1/12+1/20......1/110
=1/2+(1/2-1/3)+(1/3-1/4)+(1/4-1/5)+......+(1/10-1/11)
=1/2+1/2-1/11
=1-1/11
=10/11
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