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((1+cos""(pi)/(8)-isin""(pi)/(8))/(1+cos...

`((1+cos""(pi)/(8)-isin""(pi)/(8))/(1+cos""(pi)/(8)+isin""(pi)/(8)))^(8)`

A

1

B

-1

C

2

D

`(1)/(2)`

Text Solution

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The correct Answer is:
B
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