CBSE Class 11-science Answered
No idea for starting the following question..
Asked by nitishkrnehu09 | 23 Nov, 2017, 09:43: AM
Expert Answer
https://www.topperlearning.com/forums/home-work-help-19/prove-that-tan9-tan27-tan63-tan81-4-mathematics-trigonometric-functions-55998/reply
A similar question is already been answered, please refer the above link.
Answered by Sneha shidid | 29 Nov, 2017, 11:09: AM
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