The real part of \[{{(1-\cos \theta +2i\sin \theta )}^{-1}}\]is [IIT 1978, 86]

The real part of \[{{(1-\cos \theta +2i\sin \theta )}^{-1}}\]is [IIT 1

1.	The real part of \[{{(1-\cos \theta +2i\sin \theta )}^{-1}}\]is [IIT 1978, 86]
A.	\[\frac{1}{3+5\cos \theta }\]
B.	\[\frac{1}{5-3\cos \theta }\]
C.	\[\frac{1}{3-5\cos \theta }\]
D.	\[\frac{1}{5+3\cos \theta }\]
Answer» E.

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The real part of \[{{(1-\cos \theta +2i\sin \theta )}^{-1}}\]is [IIT 1978, 86]

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