已知实数x,y满足x(平方)+y(平方)-4x+1=0.求x(平方)+y(平方)的取值范围已知实数x,y满足x(平方)+y(平方)-4x+1=0.(1)求x(平方)+y(平方)的取值范围.(2)求y/x的取值范围
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![已知实数x,y满足x(平方)+y(平方)-4x+1=0.求x(平方)+y(平方)的取值范围已知实数x,y满足x(平方)+y(平方)-4x+1=0.(1)求x(平方)+y(平方)的取值范围.(2)求y/x的取值范围](/uploads/image/z/3797330-50-0.jpg?t=%E5%B7%B2%E7%9F%A5%E5%AE%9E%E6%95%B0x%2Cy%E6%BB%A1%E8%B6%B3x%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%2By%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89-4x%2B1%3D0.%E6%B1%82x%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%2By%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E5%B7%B2%E7%9F%A5%E5%AE%9E%E6%95%B0x%2Cy%E6%BB%A1%E8%B6%B3x%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%2By%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89-4x%2B1%3D0.%EF%BC%881%EF%BC%89%E6%B1%82x%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%2By%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.%EF%BC%882%EF%BC%89%E6%B1%82y%2Fx%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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