1.

Find the direction cosines of the line joining the two points P(-2, 4, -5) and Q(1, 2, 3). 6. Prove that the points (1, 2, 3), (3, 1, 7) and (7, -1, 15) are collinear.

Answer»


Answer :`(3)/(SQRT(77)),(-2)/(sqrt(77)),(8)/(sqrt(77))`


Discussion

No Comment Found

Related InterviewSolutions