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

A plane contains the vectors A and B. Determine the unit vector normal to the plane when A and B are equal to, respectively,

(a) 2i + 3j - 6k and 5i - 8j - 6k,

(b) 4i - 4j + 3k and -3i + 7j - 5k.

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