英语翻译在中学数学竞赛中,换元法作为一种重要的解题方法,有着能够将数学问题化繁为简,化难为易的作用.本文论述换元法在中学数学竞赛中的若干种运用,主要从自身换元、局部换元、整体换元、常值换元、均值换元、参数换元、比值换元及其功能分类等八个方面来论述.如果是百度翻译的答案就不用了
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In middle school mathematics petition, as an important problem-solving by substitution method,Conversion method has the role of transform the math problems to simplify and easy.This article discusses conversion method application in middle school mathematics petition in several ways, primarily from its own substitution, partial substitution, as a whole, often value-for-dollar, mean substitution, parameter substitution, substitution ratio conversion and functional classifications such as eight Exposition. 大体是这样,您看,满意吗,不满意的话,抱歉.