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The value of cos^(2)48^(@)-sin^(2)12^(@)...

The value of `cos^(2)48^(@)-sin^(2)12^(@)` is

A

`(sqrt(5)-1)/4`

B

`(sqrt(5)+1)/8`

C

`(sqrt(3)-1)/4`

D

`(sqrt(3)+1)/(2sqrt(2))`

Text Solution

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The correct Answer is:
B
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