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教材(人教A版)必修4第141页例4是一个扇形的内接矩形面积的最值问题.本文把这个问题的结论做一些推广,并得到一些具有一般意义的结论.结论1圆内接矩形以正方形的面积为最大.
Example 4 is the most significant problem of a fan-shaped inscribed rectangular area .This paper generalizes the conclusion of this problem and gets some conclusions of general significance.Conclusions 1: Connect the rectangle to the square area is the largest.