共50条信息
若动点\(A(x_{1},y_{1})\)、\(B(x_{2},y_{2})\)分别在直线\(l_{1}\):\(x+y-11=0\)和\(l_{2}\):\(x+y-1=0\)上移动,则\(AB\)中点\(M\)所在直线方程为
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