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If |vec a| = 2, |vec b| = 5 and |vec a x...

If `|vec a| = 2, |vec b| = 5` and `|vec a xx vec b| = 8` then `vec a . vec b`

A

such that the angle between them is `90^(o)`

B

collinear vectors

C

such that `vec a + vec b = vec 0`

D

such that the angle between then is `60^(o)`

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The correct Answer is:
B
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