Prove by using distance formula that the points `P(1,2,3),!(-1,-1,-1)a n dR(3,5,7)` are collinear.

Prove by using distance formula that the points P(1,2,3),!(-1,-1,-1) and R(3,5,7) are collinear.

Prove by using distance formula that the points P(1, 2, 3), Q(-1, -1, -1) and R(3, 5, 7) are collinear.

Show by using distane formula that the points (4,5,-5),(0,-11,3) and (2,-3,-1) are collinear.

Using distance formula show that the points A(-3,2,4),B(-1,5,9) and C(1,8,14) are collinear

Using the distance formula, prove that the points A(-2,3), B(1,2) and C(7,0) 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.

Using distance formula, show that the points A(1,-1),B(5,2)andC(9,5) are collinear.

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

Using section formula,show that the points A(2,-3,4),B(-1,2,1) and C(0,1/3,2) are collinear.

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