Show that the points `A(1,2,7),B(2,6,3) and C(3,10,-10` are collinear.

Show that the points A(1,3,2),B(-2,0,1) and C(4,6,3) are collinear.

Using distance formula, show that the points (1,5), (2,4) and (3,3) are collinear.

Show that the points A(1,-2,-8),B(5,0,-2)andC(11,3,7) are collinear , and find the ratio in which B divides AC.

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

Show that the points A(1,-2,-8) , B(5,0,-2), C(11,3,7) are collinear.

Prove by using the distance formula that the points A (1,2,3), B (-1, -1, -1) and C (3,5,7) are collinear.

The points (a, 2 a),(-2,6) and (3,1) are collinear then a=

Using section formula prove that the point that the points A(-4,6,10) , B(2,4,6) C(14,0,-2) are collinear .

Prove that the ponts A(1,2,3),B(3,4,7),C(-3 ,-2, -5) are collinear

Show that the points (3, 2) (-2, -3) and (2, 3) are collinear or non-collinear.