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For any two vectors vec(A) and vec(B), i...

For any two vectors `vec(A)` and `vec(B)`, if `vec(A).vec(B) = |vec(A) xx vec(B)|`, the magnitude of `vec(C ) = vec(A) + vec(B)` is equal to :

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`75^(@)`

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The correct Answer is:
B
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