已知两正x.y满足x+y=1'求Z=(x+1/x)(y+1/y)的最小值,注意别写最小值为4,和我犯一样的错误.步骤清楚一些
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![已知两正x.y满足x+y=1'求Z=(x+1/x)(y+1/y)的最小值,注意别写最小值为4,和我犯一样的错误.步骤清楚一些](/uploads/image/z/12633370-34-0.jpg?t=%E5%B7%B2%E7%9F%A5%E4%B8%A4%E6%AD%A3x.y%E6%BB%A1%E8%B6%B3x%2By%3D1%27%E6%B1%82Z%3D%28x%2B1%2Fx%29%28y%2B1%2Fy%29%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%2C%E6%B3%A8%E6%84%8F%E5%88%AB%E5%86%99%E6%9C%80%E5%B0%8F%E5%80%BC%E4%B8%BA4%2C%E5%92%8C%E6%88%91%E7%8A%AF%E4%B8%80%E6%A0%B7%E7%9A%84%E9%94%99%E8%AF%AF.%E6%AD%A5%E9%AA%A4%E6%B8%85%E6%A5%9A%E4%B8%80%E4%BA%9B)
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