If `a^2,b^2 and c^2` be in `A.P.` prove that `cot A,cot B and cot C` are in `A.P.` also.
60 views · Published 12 October 2018 · 4:31 · Indexed 21 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `a^2,b^2 and c^2` be in `A.P.` prove that `cot A,cot B and cot C` are in `A.P.` also.
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