If `alpha=pi/7` then find the value of `(1/cosalpha+(2cosalpha)/(cos2alpha))`
1,337 views · Published 12 October 2018 · 3:23 · Indexed 23 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `alpha=pi/7` then find the value of `(1/cosalpha+(2cosalpha)/(cos2alpha))`
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