The value of `cos(pi/4 + x) - cos(pi/4 - x)` is ______. - Vidyadip

MCQ

The value of `cos(pi/4 + x) - cos(pi/4 - x)` is ______.

A
`sqrt(2) sin x`
✓
`- sqrt(2) sin x`
C
`- sqrt(2) cos x`
D
`sqrt(2) cos x`

✓

Answer

Correct option: B.

`- sqrt(2) sin x`

B

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