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If cos x + cos y - cos (x + y ) =3/2, th...

If `cos x + cos y - cos (x + y ) =3/2,` the

A

`x + y=0`

B

`x = 2y`

C

`x =y`

D

`2x =y`

Text Solution

Verified by Experts

The correct Answer is:
C
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