从1到100中选8个数字,使它们的倒数之和为1
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发布时间:2024-10-04 11:14
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热心网友
时间:2024-10-06 05:47
1=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8+1/8
=(1-1/2)+(1/2-1/3)+(1/3-1/4)+(1/4-1/5)+(1/5-1/6)+(1/6-1/7)+(1/7-1/8)+1/8
=1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/8
热心网友
时间:2024-10-06 05:51
随便写1组:
1=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8+1/8
=(1-1/2)+(1/2-1/3)+(1/3-1/4)+(1/4-1/5)+(1/5-1/6)+(1/6-1/7)+(1/7-1/8)+1/8
=1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/8