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sin 4 theta + 2 sin 8 theta + sin 12 the...

`sin 4 theta + 2 sin 8 theta + sin 12 theta = ?`

A

`4cos^2 2thetasin 8 theta`

B

`4cos^2 thetasin 8theta`

C

`2cos^2 thetasin 8 theta`

D

`4cos^2 2thetasin 4 theta`

Text Solution

Verified by Experts

The correct Answer is:
A
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