In triangle ABC, find the value of \tan^{2}\frac{A}{2} + \tan ^{2}\frac{B}{2} + \tan ^{2}\frac{C}{2}.

RRB Group D 22-Oct-2018 Shift 2 Solved Paper

Question : 71 of 100

Marks: +1, -0

In triangle ABC, find the value of

tan^{2}\;{A}/{2} + \tan ^{2}\;{B}/{2} + \tan ^{2}\;{C}/{2}

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