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Three coplanar vectrors vec(A), vec(B) a...

Three coplanar vectrors `vec(A), vec(B)` and `vec(C)` have magnitudes `4, 3` and `2` respectively. If the angle any two vector is `120^(@)` then which of the following vector may be equal to `(3vec(A))/4+vec(B)/3+vec(C)/2`

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