If A = -i + 2j + k and B = i + j + 2k, the angle between vectors A and B is
A) 53°.
B) 30°.
C) 37°.
D) 60°.

Name: If A = -i + 2j + k and B = i + j + 2k, the angle between vectors A and B is A) 53°. B) 30°. C) 37°. D) 60°.
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The Answer of If A = -i + 2j + k and B = i + j + 2k, the angle between vectors A and B is
A) 53°.
B) 30°.
C) 37°.
D) 60°.

If a = -I + 2j + K and B