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if a = 2pie/7, then S = (sin a + sin 2a + sin 3a) which can be represent by (root p)/q. Find p+q ?

Tirthesh Vadera , 9 Years ago
Grade 11
anser 1 Answers
Saurabh Koranglekar
please refer

https://www.askiitians.com/forums/Trigonometry/if-a-2-7-find-sina-sin2a-sin4a-in-therms-of_148501.htm
Last Activity: 7 Years ago
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