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众所周知,均值代换在代数解题中有着广泛的应用,这一方法在几何解题中也大有用武之地,所不同的是,均值需结合图形确定(有时还需添辅助线),以下仅举几例加以说明。
As we all know, mean substitution has a wide range of applications in algebraic problem solving. This method is also very useful in solving geometric problems. The difference is that the mean value must be determined in combination with the graph (sometimes it is necessary to add auxiliary lines). Give a few examples to illustrate.