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The value of cos 10^@. Cos 20^@. Cos 40 ...

The value of cos `10^@. Cos 20^@. Cos 40 ^@` is equal to

A

`1/4 tan 10^@`

B

`1/8 cot 10^@`

C

`1/8 cosec 10^@`

D

`1/8 sec 10^@`

Text Solution

Verified by Experts

The correct Answer is:
B
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