求满足下列条件的动圆圆心M的轨迹. (1)与⊙C:(x+2)2+y2=2内切,且过点A(2,0);
求满足下列条件的动圆圆心M的轨迹.(1)与⊙C:(x+2)2+y2=2内切,且过点A(2,0);(2)与⊙C1:x2+(y-1)2=1和⊙C2:x2+(y+1)2=4都外...
求满足下列条件的动圆圆心M的轨迹.
(1)与⊙C:(x+2)2+y2=2内切,且过点A(2,0);
(2)与⊙C1:x2+(y-1)2=1和⊙C2:x2+(y+1)2=4都外切;
(3)与⊙C1:(x+3)2+y2=9外切,且与⊙C2:(x-3)2+y2=1内切. 展开
(1)与⊙C:(x+2)2+y2=2内切,且过点A(2,0);
(2)与⊙C1:x2+(y-1)2=1和⊙C2:x2+(y+1)2=4都外切;
(3)与⊙C1:(x+3)2+y2=9外切,且与⊙C2:(x-3)2+y2=1内切. 展开
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