MCQOPTIONS
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| 1. |
If \[\sin 2\theta =\cos 3\theta \]and \[\theta \]is an acute angle, then \[\sin \theta \]is equal to [EAMCET 1980] |
| A. | \[\frac{\sqrt{5}-1}{4}\] |
| B. | \[\frac{-\sqrt{5}-1}{4}\] |
| C. | 0 |
| D. | None of these |
| Answer» B. \[\frac{-\sqrt{5}-1}{4}\] | |