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农民有 200 m 围栏建一个矩形鸡舍,由一道与某边平行的内部围栏一分为二。哪些尺寸最大化面积?最大面积是多少?
农民有 200 m 围栏建一个矩形鸡舍,由一道与某边平行的内部围栏一分为二。哪些尺寸最大化面积?最大面积是多少?
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