If A = i + 2j and B = 2i

Name: If A = i + 2j and B = 2i - j, the angle between vectors A and B is A) 30°. B) -45°. C) 60°. D) 90°.
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Question

If A = i + 2j and B = 2i - j, the angle between vectors A and B is
A) 30°.
B) -45°.
C) 60°.
D) 90°.

Quizplus · Accepted Answer

The Answer of If A = i + 2j and B = 2i - j, the angle between vectors A and B is
A) 30°.
B) -45°.
C) 60°.
D) 90°.