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The angle between vectors vec(A) and vec...

The angle between vectors `vec(A) and vec(B)` is `60^@` What is the ratio `vec(A) .vec(B)` and `|vec(A) xxvec(B)|`

A

`1/(sqrt(2))`

B

`1/(sqrt(3))`

C

`1/(sqrt(4))`

D

`1/(sqrt(5))`

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The correct Answer is:
B
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