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Let vector a = i - 2j + k and vector b = i - j + k be two vectors. If vector c is a vector such that b x c = b x a and c. a = 0, then c. b is equal to

(1) 1/2

(2) - 1

(3) - 1/2

(4) - 3/2

2 Answers

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Best answer

Answer is (3) - 1/2

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by (54.8k points)

Answer is (3) - 1/2

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