MCQOPTIONS
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| 1. |
If 3 sin x + 4 cos x = 2, then the value of 3 cos x - 4 sin x is equal to: |
| A. | 21 |
| B. | \(\sqrt {21}\) |
| C. | \(\sqrt {23}\) |
| D. | \(\sqrt {29}\) |
| Answer» C. \(\sqrt {23}\) | |