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围栏将矩形地块靠墙围起来(围栏在 3 边)。围栏总长 60 m。将面积 A 建模为一边的函数并最大化。
围栏将矩形地块靠墙围起来(围栏在 3 边)。围栏总长 60 m。将面积 A 建模为一边的函数并最大化。
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