The expression \[{{\left[ \frac{1+\sin \frac{\pi }{8}+i\cos \frac{\pi }{8}}{1+\sin \frac{\pi }{8}-i\cos \frac{\pi }{8}} \right]}^{8}}=\]

The expression \[{{\left[ \frac{1+\sin \frac{\pi }{8}+i\cos \frac{\pi

1.	The expression \[{{\left[ \frac{1+\sin \frac{\pi }{8}+i\cos \frac{\pi }{8}}{1+\sin \frac{\pi }{8}-i\cos \frac{\pi }{8}} \right]}^{8}}=\]
A.	1
B.	-1
C.	i
D.
Answer» C. i

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The expression \[{{\left[ \frac{1+\sin \frac{\pi }{8}+i\cos \frac{\pi }{8}}{1+\sin \frac{\pi }{8}-i\cos \frac{\pi }{8}} \right]}^{8}}=\]

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