![]()
先点赞再收藏,快乐玩题没烦恼!这道题是一道非常经典的二元变量最值问题。mn同号玩齐次,别被分式吓破胆。比值换元令u=(m-n)²/mn,瞬间化繁为简。基本不等式一放缩,答案乖乖出来。注意m≠n,别让等号偷偷溜走。这题就是分式界的变形记,换元换得好,解题没烦恼。
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
![]()
特别声明:以上内容(如有图片或视频亦包括在内)为自媒体平台“网易号”用户上传并发布,本平台仅提供信息存储服务。
Notice: The content above (including the pictures and videos if any) is uploaded and posted by a user of NetEase Hao, which is a social media platform and only provides information storage services.