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| 1. |
How the angle between \overset⇀ A- \overset⇀ B and \overset⇀ B - \overset⇀ A is 180^0. |
| Answer» How the angle between \overset⇀ A- \overset⇀ B and \overset⇀ B - \overset⇀ A is 180^0. | |