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If A+B=60^(@) then cos^(2)A+cos^(2)B-cos...

If `A+B=60^(@)` then `cos^(2)A+cos^(2)B-cosA cosB=`

A

`1/4`

B

`2/3`

C

`3/4`

D

`4/3`

Text Solution

Verified by Experts

The correct Answer is:
C
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