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Engineering Mechanics - Data Intensity 3 :: Discussion
| 7. | What is {(i.i) + (-i.j) + (-k.k) + (k.i)}.(Ai +Bj + Cz)? | |
| A. | 1 | |
| B. | 0 | |
| C. | A + B + C | |
| D. | -1 | |
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