Question

prove the following. 16 sin theta * cos theta * cos 2 theta * cos 4 theta * cos 8 theta = sin 16 theta ​

Answer 1

Answer:

(2 Sin theta * cos theta=sin 2 theta)

8*2 sin theta *cos theta *cos 2 theta cos 4 theta * cos 8 theta = sin 16 theta

8 sin 2 theta * cos 2 theta * cos 4 theta * cos 8 theta  

4 sin 4 theta * cos 4 theta * cos 8 theta

2 sin 8 theta * cos 8 theta

sin 16 theta

Step-by-step explanation: