3 The angle between the two vectors 21 37 kandi 2 4k is A 90 B 0 C 180 D 45 If a vector 2 2j 3k and B 31 6 nk are perpendicular

Question

3 The angle between the two vectors 21 37 kandi 2 4k is A 90 B 0 C 180 D 45 If a vector 2 2j 3k and B 31 6 nk are perpendicular to each other then the value of n is A 4 B 12 C 6 D 6

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