Question

If A and B are two non-zero vectors such that |Ā+B|=|A-B|÷2
and |Al = 2|B| then the angle
between A and B is :
(A) 37°
(B) 53°
(C) cos-(-3/4)
(D) cos(-4/3)​

Answer 1

Answer: (C) cos-¹ (-3/4)

Explanation: Hope this helps. :)

Answer 2

Answer:

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Here is ur answer.

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