What is solution of the mentioned problem?Please,help.

Prove that,(2costheta-1)(2cos2theta-1)(2cos2^2theta).....................(2cos2^(n-1)theta-1)=color(blue)((2cos2^ntheta+1)/(2costheta+1))

1 Answer
Dec 21, 2017

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Explanation:

![My http://notebook....](https://useruploads.socratic.org/nlOK894YTkitrUdEwdZ4_IMG_20171221_102221_858%5B1%5D.JPG)

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