CBSE Class 11-science Answered
clear my doubt
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Asked by kandukuriPraneeth16 | 25 Jul, 2020, 18:18: PM
To solve: sintheta/cos3theta + sin3theta/cos9theta + sin9theta/cos27theta
This can be solved as follows:
![](https://images.topperlearning.com/topper/tinymce/imagemanager/files/b236400e6f268a4e88933840430ef0365f2121de308e32.64728252WhatsAppImage20200729at12.38.22PM.png)
Answered by Renu Varma | 29 Jul, 2020, 12:45: PM
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