If a, b, c and k are real constants and `alpha, beta, gamma` are variables subject to the con
360 views · Published 13 October 2018 · 4:17 · Indexed 7 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If a, b, c and k are real constants and `alpha, beta, gamma` are variables subject to the condition that `a tanalpha + btanbeta+ c tangamma=k` , then prove using vectors that `tan^2 alpha + tan^2 beta+ tan^2gamma gt= k^2 /(a^2 + b^2 + c^2)`
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