当点P在圆x2+y2=1上变动时,它与定点Q(3,0)的连结线段PQ的中点的轨迹方程是( )
A.(x+3)2+y2
=4 B.(x-3)2+y2=1
C.(2x-3)2+4y2=1 D.(2x+3)2+4y2=1
当点P在圆x2+y2=1上变动时,它与定点Q(3,0)的连结线段PQ的中点的轨迹方程是( )
A.(x+3)2+y2
=4 B.(x-3)2+y2=1
C.(2x-3)2+4y2=1 D.(2x+3)2+4y2=1
C