M(3,0)是圆x2+y2-8x-2y+10=0内一点,过M点最长的弦所在的直线方程为( )
A.x-y-3=0 |
B.x+y-3=0 |
C.2x-y-6=0 |
D.2x+y-6=0 |
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M(3,0)是圆x2+y2-8x-2y+10=0内一点,过M点最长的弦所在的直线方程为( )
A.x-y-3=0 |
B.x+y-3=0 |
C.2x-y-6=0 |
D.2x+y-6=0 |