Find the unit vector in the direction of vector where P and Q are the points (1, 2, 3) and (4, 5, 6).

Question

Philoid · Accepted Answer

First we need to create vector PQ

Position vector of P = OP = (1, 2, 3) and position vector of Q = OQ = (4, 5, 6)

So unit vector in the direction PQ,