滨湖东方蓝海最新消息:一道不等式的证明

来源:百度文库 编辑:杭州交通信息网 时间:2024/05/10 14:05:49
1/(n+1)+1/(n+2)+……+1/(3n+1)<2 (n属于正整数)

1/(n+1)+1/(n+2)+……+1/(3n+1)<1/(n+1)+1/(n+1)+……1/(n+1)(共2n+1个)=2n+1/n+1<2n+2/n+1=2