The most general value of $\theta $ satisfying the equations $\sin \theta = \sin \alpha $ and $\cos \theta = \cos \alpha $ is
The most general value of $\theta $ satisfying the equations $\sin \theta = \sin \alpha $ and $\cos \theta = \cos \alpha $ is
- [IIT 1971]
- A
$2n\pi + \alpha $
- B
$2n\pi - \alpha $
- C
$n\pi + \alpha $
- D
$n\pi - \alpha $
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