摘要:5.已知A(1,0)和圆C: 上一点R,动点满足,则点P的轨迹方程为
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已知A(1,0)和圆C:x2+y2=4上一点R,动点满足
=2
,则点P的轨迹方程为( )
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RA |
AP |
A.(x-
| B.x2+(y-
| C.(x+
| D.x2+(y+
|