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If A(x1, y1),B(x2, y2),C(x3, y3) are th...

If `A(x_1, y_1),B(x_2, y_2),C(x_3, y_3)` are the vertices of a triangle, then the equation `|x y1x_1y_1 1x_2y_3 1|+|x y1x_1y_1 1x_3y_3 1|=0` represents (a)the median through `A` (b)the altitude through `A` (c)the perpendicular bisector of `B C` (d)the line joining the centroid with a vertex

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