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),Q(-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.

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

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

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

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

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