Duration: 7:55

2 views

0

Prove that, \( \cos \theta \cos 2 \theta \cos 2^{2} \theta \ldots \cos 2^{n-1} \theta=\frac{\sin 2^{n} \theta}{2^{n} \sin \theta} \), for all \( n \in \mathbf{N} \).
\( \mathrm{P} \)
W
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live