英文: With the correct discussing way,the unequivalence problem of a triangle middle and side line is studied and proved,from which the glamor of studying mathematical guessing proof.

中文: 以正确分类讨论的方法,研究并证明了三角形中线长与其边长的一个十分精彩的不等式猜想问题,从中领悟研究数学猜想证明的魁力所在.       更详细...

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