1⼀2+1⼀6+1⼀12+1⼀20+1⼀30+1⼀42+……+1⼀110=?

急用!!!!!!!!!!
2025-04-25 05:50:08
推荐回答(2个)
回答1:

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

回答2:

只要答案的话用计算机算下!!会编程吗!!