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若点P(1,1)为圆(x-3)2+y2=9的弦MN的中点,则弦MN所在直线方程为...
若点P(1,1)为圆(x-3)2+y2=9的弦MN的中点,则弦MN所在直线方程为( )
A.2x+y-3=0
B.x-2y+1=0
C.x+2y-3=0
D.2x-y-1=0
考点分析:
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