How are you,Ｍy answer is right is right,though my right side is

来源: 于 2011-08-04 13:32:34 [旧帖] [给我悄悄话] 本文已被阅读：次

I'm very sad your beliving in somebody other me. n=2,3,the formula are wrong.The formula should be right for all n.Show me where you find the answer.Read mine please.