What is the value of cos 15^(@)?...

What is the value of cos `15^(@)`?

A

`( sqrt3 +1)/( 2 sqrt2)`

B

`( sqrt3 -1)/( 2 sqrt2)`

C

`(1)/( 2 sqrt2)`

D

`(sqrt3)/( 2 sqrt2)`

Verified by Experts

The correct Answer is:

A

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