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8 sin theta * cos theta * cos 2 theta * ...

`8 sin theta * cos theta * cos 2 theta * cos 4 theta = ` A)`sin 4 theta`B)`sin 8 theta`C)`sin 16 theta`D)`cos 8 theta`

A

`sin 4 theta`

B

` sin 8 theta`

C

`sin 16 theta`

D

`cos 8 theta`

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The correct Answer is:
B
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