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

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

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

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

Show that the point (1 , 2 , 3), (7 , 0 1), (- 2, 3, 4) are collinear.

(i) Using section formula, show that the points A(-2, 3,5), B(1,2,3) and C(7,0,-1) are collinear. (ii) Using division formula, prove that the points (2,3,4),(-1,-2,1) and (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 A(2, 3, -4), B(1, -2, 3) and C(3, 8, -11) are collinear.

Show that the points A(2,3,-4), B(1,-2,3), C(3,8,-11) are collinear.

Show that the points (2,3,-4), (1,-2,3) and (3,8,-11) are collinear.

Show that the point A(2,-3,-4), B(1,2,3), C(3,-8,-11) are collinear.