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本文以三角形不等式 a~2(b+c-a)+b~2(c+a-b)+c~2(a+b-c)≤3abc ①(a,b,c为△ABC三边)的证明及种种等价变形为例,探索等价约化法的规律,并研究相关不
In this paper, we prove that the triangle inequality a~2(b+ca)+b~2(c+ab)+c~2(a+bc)≤3abc 1 (a,b,c is the three sides of ABC) and various kinds of them. The price deformation is taken as an example to explore the law of the equivalent reduction method and study the related