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1- 2 sin ^(2) ((pi)/(4) + theta)=...

`1- 2 sin ^(2) ((pi)/(4) + theta)=`

A

`cos 2 theta `

B

`- cos 2 theta `

C

`sin 2 theta `

D

`- sin 2 theta `

Text Solution

Verified by Experts

The correct Answer is:
D
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