clear my doubt

Asked by kandukuriPraneeth16 | 25th Jul, 2020, 06:18: PM

Expert Answer:

To solve: sintheta/cos3theta + sin3theta/cos9theta + sin9theta/cos27theta
This can be solved as follows:
 

Answered by Renu Varma | 29th Jul, 2020, 12:45: PM