MCQOPTIONS
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| 1. |
If cos (x - y) \(=\frac{\sqrt 3}{2}\) and sin (x + y) \(=\frac{1}{2}\), then the value of x (0 ≤ x ≤ 90) is: |
| A. | 45° |
| B. | 30° |
| C. | 15° |
| D. | 60° |
| Answer» C. 15° | |