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The value of cos ^(2)45^(@) - sin^(2)15^...

The value of `cos ^(2)45^(@) - sin^(2)15^(@)` is

A

`sqrt3/2`

B

`sqrt3/4`

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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HIMALAYA PUBLICATION-COMMON ENTRANCE TEST - 2017-QUESTION BANK
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