来自耿汝年的问题
(1)1+1/2+1/3+1/4+1/5+1/6+1/7+1/14+1/28
(1)1+1/2+1/3+1/4+1/5+1/6+1/7+1/14+1/28
1回答
2020-04-05 10:50
(1)1+1/2+1/3+1/4+1/5+1/6+1/7+1/14+1/28
(1)1+1/2+1/3+1/4+1/5+1/6+1/7+1/14+1/28
1+(1/2+1/3+1/6)+(1/4+1/7+1/14+1/28)+1/5=2.7