实数x,y满足{x+2y-4+丨x+2y-4丨≤6,1≤x≤5,1≤y≤3},求u=(x^2+y^2)/xy的取值范围!
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![实数x,y满足{x+2y-4+丨x+2y-4丨≤6,1≤x≤5,1≤y≤3},求u=(x^2+y^2)/xy的取值范围!](/uploads/image/z/12574389-21-9.jpg?t=%E5%AE%9E%E6%95%B0x%2Cy%E6%BB%A1%E8%B6%B3%7Bx%2B2y-4%2B%E4%B8%A8x%2B2y-4%E4%B8%A8%E2%89%A46%2C1%E2%89%A4x%E2%89%A45%2C1%E2%89%A4y%E2%89%A43%7D%2C%E6%B1%82u%3D%28x%5E2%2By%5E2%29%2Fxy%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%21)
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实数x,y满足{x+2y-4+丨x+2y-4丨≤6,1≤x≤5,1≤y≤3},求u=(x^2+y^2)/xy的取值范围!
实数x,y满足{x+2y-4+丨x+2y-4丨≤6,1≤x≤5,1≤y≤3},求u=(x^2+y^2)/xy的取值范围!
实数x,y满足{x+2y-4+丨x+2y-4丨≤6,1≤x≤5,1≤y≤3},求u=(x^2+y^2)/xy的取值范围!
取值范围为[-1,4]