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sin^(2)((pi)/(8)+(A)/(2))-sin^(2)((pi)/(...

`sin^(2)((pi)/(8)+(A)/(2))-sin^(2)((pi)/(8)-(A)/(2))` is equal to :

A

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

B

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

C

`sqrt(2)sinA`

D

`sqrt(2)cosA`

Text Solution

Verified by Experts

The correct Answer is:
a
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