if `coxx=cosalpha.cosbeta` then prove that `tan((x+alpha)/2)*tan((x-alpha)/2)=tan^2beta/2`
744 views · Published 13 October 2018 · 5:39 · Indexed 7 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW if `coxx=cosalpha.cosbeta` then prove that `tan((x+alpha)/2)*tan((x-alpha)/2)=tan^2beta/2`
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