MCQOPTIONS
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MCQOPTIONS
| 1. |
If \(\vec a, \vec b, \vec c\) are vectors such that \(\vec a + \vec b + \vec c = 0\) and \(|\vec a| = 7, |\vec b| = 5, |\vec c| = 3\), then the angle between the vectors \(\vec b\) and \(\vec c\) is? |
| A. | 60° |
| B. | 30° |
| C. | 45° |
| D. | 90° |
| Answer» B. 30° | |