Q12 of 177 Page 23

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

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,






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