If `a=cos (2pi)/7 + i sin (2pi)/7` `alpha =a+a^2+a^4`, `beta =a^3+a^5+a^6` then `alpha, beta` a...
2,268 views · Published 11 October 2018 · 4:04 · Indexed 3 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `a=cos (2pi)/7 + i sin (2pi)/7` `alpha =a+a^2+a^4`, `beta =a^3+a^5+a^6` then `alpha, beta` are the roots of the equation
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