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如图,已知一动圆的圆心P在抛物线y=x2-3x+3上运动.若⊙P半径为1,点P的...
如图,已知一动圆的圆心P在抛物线y=
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x
2-3x+3上运动.若⊙P半径为1,点P的坐标为(m,n),当⊙P与x轴相交时,点P的横坐标m的取值范围是
.
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