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cos [2"cos"^(-1) (1)/(5) + "sin"^(-1) (1...

`cos [2"cos"^(-1) (1)/(5) + "sin"^(-1) (1)/(5)]=`

A

`(1)/(5)`

B

`(-2 sqrt6)/(5)`

C

`-(1)/(5)`

D

`(sqrt6)/(5)`

Text Solution

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The correct Answer is:
B
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