过点A(1,-1)与B(-1,1)且圆心在直线x+y-2=0上的圆的方程为
A.(x-3)2+(y+1)2=4 | B.(x-1)2+(y-1)2=4 |
C.(x+3)2+(y-1)2=4 | D.(x+1)2+(y+1)2=4 |
推荐套卷
过点A(1,-1)与B(-1,1)且圆心在直线x+y-2=0上的圆的方程为
A.(x-3)2+(y+1)2=4 | B.(x-1)2+(y-1)2=4 |
C.(x+3)2+(y-1)2=4 | D.(x+1)2+(y+1)2=4 |