cos^(2) 48^@ - sin^(2) 12^@ का मान है...

`cos^(2) 48^@ - sin^(2) 12^@` का मान है

A

`(sqrt5 + 1)/4`

B

`(sqrt5 + 1)/8`

C

`(sqrt5 + 1)/16`

D

`(sqrt5- 1)/16`

Verified by Experts

The correct Answer is:

B

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