MCQOPTIONS
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| 1. |
\[{{(\sin \theta +i\,\cos \theta )}^{n}}\,\]is equal to [RPET 2001] |
| A. | \[\cos n\theta +i\,\sin n\theta \] |
| B. | \[\sin n\theta +i\,\cos n\theta \] |
| C. | \[\cos n\left( \frac{\pi }{2}-\theta \right)+i\,\sin n\left( \frac{\pi }{2}-\theta \right)\] |
| D. | None of these |
| Answer» D. None of these | |