Using direction ratios show that the points P(2, 3, 4) Q(-1, -2, 1) and R(5, 8, 7) are collinear.

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Show that the points (2, 3, 4), (-1, -2, 1), (5, 8, 7) are collinear.

Show that the points (2, 3, 4), (- 1, - 2, 1), (5, 8, 7) are collinear.

Show that the points (2, 3, 4), ( -1, -2, 1), (5, 8, 7) are collinear.

Show that the points P(-2, 3, 5), Q(1, 2, 3) and R(7, 0, -1) are collinear.

Using direction ratio show that the points (2, 6, 3), (1, 2, 7) and (3, 10, -1) are collinear.

Show that the points (2, 3, 4), (– 1, – 2, 1), (5, 8, 7) are collinear.

Show that the points P (-2, 3, 5) , Q (1, 2, 3) and R (7, 0, -1) are collinear.

Show that the points P(- 2 , 3, 5) , Q (1, 2, 3) and R(7, 0, -1) are collinear.

Using direction ratios show that the points A(2,3,-4), B(1,-2,3) and C(3,8,-11) are collinear.