请问已知m(0,-1),n(0,2),动点p满足pm-pn=3,则p点轨迹是,

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请问已知m(0,-1),n(0,2),动点p满足pm-pn=3,则p点轨迹是,

请问已知m(0,-1),n(0,2),动点p满足pm-pn=3,则p点轨迹是,
请问已知m(0,-1),n(0,2),动点p满足pm-pn=3,则p点轨迹是,

请问已知m(0,-1),n(0,2),动点p满足pm-pn=3,则p点轨迹是,
是1条射线,x=0,y>2,因为mn=3