MCQOPTIONS
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| 1. |
If \[{{\sin }^{2}}\theta -2\cos \theta +\frac{1}{4}=0,\]then the general value of \[\theta \]is [MP PET 1984] |
| A. | \[n\pi \pm \frac{\pi }{3}\] |
| B. | \[2n\pi \pm \frac{\pi }{3}\] |
| C. | \[2n\pi \pm \frac{\pi }{6}\] |
| D. | \[n\pi \pm \frac{\pi }{6}\] |
| Answer» C. \[2n\pi \pm \frac{\pi }{6}\] | |