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Prove that cos. (pi)/(11). cos . (2 pi)/...

Prove that `cos. (pi)/(11). cos . (2 pi)/(11). cos . (3 pi)/(11) cos. (4 pi)/(11). cos . (5 pi)/(11)=(1)/(32)`

A

`1//4`

B

`1//8`

C

`1//16`

D

`1//32`

Text Solution

Verified by Experts

The correct Answer is:
D
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