Question: OA is the vector 4i j 2k and OB is the vector 2i + 3j + k. Find: a. The vector AB b.

OA is the vector 4i − j − 2k and OB is the vector −2i + 3j + k.

Find:

a. The vector AB
b. The distance between A and B
c. The unit vector in the direction of AB .

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