\[{{\left( \frac{\cos \theta +i\sin \theta }{\sin \theta +i\cos \theta } \right)}^{4}}\]equals [RPET 1996]

\[\sin 8\theta -i\cos 8\theta \]

\[\cos 8\theta -i\sin 8\theta \]

\[\sin 8\theta +i\cos 8\theta \]

\[\cos 8\theta +i\sin 8\theta \]

\[{{\left( \frac{\cos \theta +i\sin \theta }{\sin \theta +i\cos \theta

1.	\[{{\left( \frac{\cos \theta +i\sin \theta }{\sin \theta +i\cos \theta } \right)}^{4}}\]equals [RPET 1996]
A.	\[\sin 8\theta -i\cos 8\theta \]
B.	\[\cos 8\theta -i\sin 8\theta \]
C.	\[\sin 8\theta +i\cos 8\theta \]
D.	\[\cos 8\theta +i\sin 8\theta \]
Answer» E.

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\[{{\left( \frac{\cos \theta +i\sin \theta }{\sin \theta +i\cos \theta } \right)}^{4}}\]equals [RPET 1996]

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