If θ is the angle between any two vectors , then when θ is equal to (A) 0 (B) 4 / π (C) 2 / π (D) π

Question

If θ  is the angle between any two vectors , then when θ is equal to
(A) 0 (B) 4 / π (C) 2 / π (D) π

Accepted Answer

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Question 19