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Cos^(2)20^(@)+Cos^(2)40^(@)+cos^(2)80^(@...

`Cos^(2)20^(@)+Cos^(2)40^(@)+cos^(2)80^(@)=`

A

`1/2`

B

1

C

`3/2`

D

2

Text Solution

Verified by Experts

The correct Answer is:
C
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