Question: A plane contains the vectors A and B. Determine the unit vector normal to the plane when A and B equal to, respectively, (a) 12

A plane contains the vectors A and B. Determine the unit vector normal to the plane when A and B equal to, respectively,
(a) 12 a i−6j+9k and −3i+9j−7.5k,
(b) −14i−2j+8k and 3i+1.5j−k

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