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If x+y=z then cos^2 x+cos^2 y+cos^2 z-2c...

If `x+y=z` then `cos^2 x+cos^2 y+cos^2 z-2cosx cosy cosz=`

A

`cos^(2) z`

B

`sin^(2) z`

C

`cos(x+y-z)`

D

1

Text Solution

Verified by Experts

The correct Answer is:
C, D
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