`19.sin^2pi/18+sin^2(2pi)/18+sin^2(4pi)/18+sin^2(8pi)/18+sin^2(7pi)/18+sin^2(5pi)/18 `
439 views · Published 13 October 2018 · 5:19 · Indexed 6 October 2026
Channel: Doubtnut · 2018 · Education
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