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The value of (1)/(sqrt(2)) (cos A - sin ...

The value of `(1)/(sqrt(2)) (cos A - sin A)` is

A

`cos ((pi)/(3) + A)`

B

`cos ((pi)/(2) + A)`

C

`cos ((pi)/(4) + A)`

D

`sin ((pi)/(4) + A)`

Text Solution

Verified by Experts

The correct Answer is:
C
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