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2(1-2sin^(2)7theta)sin 3 theta=...

`2(1-2sin^(2)7theta)sin 3 theta=`

A

`sin 11 theta-sin 17theta`

B

`sin 17 theta-sin 11theta`

C

`cos 17theta-cos 11 theta`

D

`cos 17 theta+cos 11 theta`

Text Solution

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The correct Answer is:
B
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