1/2+1/6+1/12+1/20+1/30+1/42+……+1/110=?急用!
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/29 02:49:46
![1/2+1/6+1/12+1/20+1/30+1/42+……+1/110=?急用!](/uploads/image/z/1031174-62-4.jpg?t=1%2F2%2B1%2F6%2B1%2F12%2B1%2F20%2B1%2F30%2B1%2F42%2B%E2%80%A6%E2%80%A6%2B1%2F110%3D%3F%E6%80%A5%E7%94%A8%21)
1/2+1/6+1/12+1/20+1/30+1/42+……+1/110=?急用!
1/2+1/6+1/12+1/20+1/30+1/42+……+1/110=?
急用!
1/2+1/6+1/12+1/20+1/30+1/42+……+1/110=?急用!
1/2+1/6+1/12+1/20+1/30+1/42+……+1/110
=1-1/2+1/2-1/3+1/3-1/4+……+1/10-1/11
=1-1/11
=10/11
1/2+1/6+1/12+1/20+1/30+1/42+……+1/110
=1- 1/2 +1/2-1/3+1/3 - 1/4…...+1/10-1/11
=1-1/11
=10/11
1/2+1/6+1/12...+1/110
=1-1/2+1/2-1/3+1/3-1/4...+1/10-1/11
=1-1/11
=10/11
10/11
只要答案的话用计算机算下!!会编程吗!!