If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is

If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is

Options

(a) 180゚
(b) 90゚
(c) 45゚
(d) 0゚

Correct Answer:

90゚

Explanation:

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