问题:
过点(1,1)的直线l与圆x 2+y 2=4交于A,B两点,若 |AB|=2
2
,则直线l的方程为( )
A.x+y-2=0
B.x-2y+1=0
C.2x-y-1=0
D.x-y-1=0
过点(1,1)的直线l与圆x 2+y 2=4交于A,B两点,若 |AB|=2
,则直线l的方程为( )
2 |
A.x+y-2=0 | B.x-2y+1=0 | C.2x-y-1=0 | D.x-y-1=0 |
参考答案: