Show that the line joining the points (1,2,3), (-1,-2,-3) is perpendicular to the line joining (-2,1,5),(3,3,2).

Show that the line joining the points A(2,3,-1) and B(3,5,-3) is perpendicular to the line joining C(1,2,3) and D(3,5,7) .

Show that the line joining (2, -3) and (-1, 2) is perpendicular to the line joining (3, 7) and (-2, 4) .

Show that the line joining (2, -3) and (-1, 2) is perpendicular to the line joining (3, 7) and (-2, 4) .

Show by vector method that the line joining the points (1, 4, 2) and (-1, 1, -2) is perpendicular to the line joining the points (2,-3, 4) and (5, 3, -2) .

Show by vector method that the line joining the points (1, 4, 2) and (-1, 1, -2) is perpendicular to the line joining the points (2,-3, 4) and (5, 3,-2) .

If the line joining the points (-1,2,3) (2,-1,4) is perpendicular to the line joining (x,-2,4) and (1,2,3) then x =

Show that the line joining the points (4,-3) and (0,7) is perpendicular to the line joining the points (5,2) and (0,0) .