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If x=cos10^(@)cos20^(@)cos40^(@), then x...

If `x=cos10^(@)cos20^(@)cos40^(@)`, then x = ?

A

`(1)/(4)tan10^(@)`

B

`(1)/(8)tan10^(@)`

C

`(1)/(4)cot10^(@)`

D

`(1)/(8)cot10^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A, C
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