Name: Anonymous 2008-10-27 12:58
Hi i need to prove the following;
3 distinct points, P,Q are R have position vectors p,q and r respectfully. Show that P,Q and R are collinear (that is, all lie on a straight line) if p x q + q x r + r x p = 0
3 distinct points, P,Q are R have position vectors p,q and r respectfully. Show that P,Q and R are collinear (that is, all lie on a straight line) if p x q + q x r + r x p = 0