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cos (2 sin ^(-1) (1)/(2))=...

`cos (2 sin ^(-1) (1)/(2))=`

A

`(sqrt(3))/(2) `

B

`(1)/(sqrt(3))`

C

`(1)/(sqrt(2))`

D

`(1)/(2)`

Text Solution

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The correct Answer is:
A
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