Write \(\sin^2 x = \frac {1}{2} (1-\cos 2x)\).
You will get an A.P in angles during summation.Just apply the formula.
–
Akshay Bodhare
·
1 year, 7 months ago

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The answer is 19/2, but please tell me how.
–
Ashley Shamidha
·
1 year, 7 months ago

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TopNewestWrite \(\sin^2 x = \frac {1}{2} (1-\cos 2x)\). You will get an A.P in angles during summation.Just apply the formula. – Akshay Bodhare · 1 year, 7 months ago

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The answer is 19/2, but please tell me how. – Ashley Shamidha · 1 year, 7 months ago

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