记圆心C(x,x/2)
C到直线的距离|x-x-4√5|/√5=r=4
(x-2)^2+(x/2-5)^2=16 x1=26/5 x2=2
得圆心C(26/5,13/5)或(2,1)
(x-2)^2+(y-1)^2=16或 (x-26/5)^2+(y-13/5)^2=16
应该对的吧
记圆心C(x,x/2)
C到直线的距离|x-x-4√5|/√5=r=4
(x-2)^2+(x/2-5)^2=16 x1=26/5 x2=2
得圆心C(26/5,13/5)或(2,1)
(x-2)^2+(y-1)^2=16或 (x-26/5)^2+(y-13/5)^2=16
应该对的吧