|1/2008-1/2007|+|1/2007-1/2006|+|1/2006-1/2005|+|1/2005-1/2004|+……+|1/3-1/2|+|1/2-1|
答案:3 悬赏:40 手机版
解决时间 2021-03-11 02:58
- 提问者网友：我们很暧昧
- 2021-03-10 14:39
|1/2008-1/2007|+|1/2007-1/2006|+|1/2006-1/2005|+|1/2005-1/2004|+……+|1/3-1/2|+|1/2-1|
最佳答案
- 五星知识达人网友：归鹤鸣
- 2021-03-10 15:24
|1/2008-1/2007|+|1/2007-1/2006|+|1/2006-1/2005|+|1/2005-1/2004|+……+|1/3-1/2|+|1/2-1|
=1-1/2+1/2-1/3+……+1/2004-1/2005+1/2005-1/2006+1/2006-1/2007+1/2007-1/2008
=1-1/2008
=2007/2008
=1-1/2+1/2-1/3+……+1/2004-1/2005+1/2005-1/2006+1/2006-1/2007+1/2007-1/2008
=1-1/2008
=2007/2008
全部回答
- 1楼网友：蕴藏春秋
- 2021-03-10 16:11
都是负数相加怎么等于正数啊！！？？
- 2楼网友：煞尾
- 2021-03-10 15:51
1/2008-1/2007|+|1/2007-1/2006|+|1/2006-1/2005|+|1/2005-1/2004|+……+|1/3-1/2|+|1/2-1|
=1-1/2+1/2-1/3+……+1/2004-1/2005+1/2005-1/2006+1/2006-1/2007+1/2007-1/2008
=1-1/2008
=2007/2008
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