vectors

Question: If $|\,\vec A + \vec B\,|\, = \,|\,\vec A\,| + |\,\vec B\,|$, then angle between $\vec A$and $\vec B$ will be



1) 90°
2) 120°
3) 0°
4) 60°
Solution: Explanation: Explanation
addition-subtraction-vectors

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