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If vectors vec(A) and vec(B) are such th...

If vectors `vec(A)` and `vec(B)` are such that `|vec(A)+vec(B)|=|vec(A)|=|vec(B)|`, then `|vec(A)-vec(B)|` may be equated to (A) `sqrt3/2 |vecA|` (B) ` |vecA|` (C) `sqrt2 |vecA|` (D) `sqrt3|vecA|`

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