MCQOPTIONS
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| 1. |
The sine of the angle between the two values a = 3i + j + k and b = 2i – 2j + k is |
| A. | \(\sqrt {\frac{{74}}{{99}}} \) |
| B. | \(\sqrt {\frac{{25}}{{99}}}\) |
| C. | \(\sqrt {\frac{{37}}{{99}}}\) |
| D. | \(\frac{{\sqrt 5 }}{{51}}\) |
| Answer» B. \(\sqrt {\frac{{25}}{{99}}}\) | |