MCQOPTIONS
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| 1. |
In the calculations of the bearings, we often use vector math. So for those systems which of the following is true? |
| A. | i x i =1 |
| B. | j x i = -j |
| C. | k x j = -i |
| D. | k x k = 1 |
| Answer» D. k x k = 1 | |