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In-ABC-show-that-1-cos-A-B-cos-C-h-C-sec-C-3-2-R-

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Question Number 196555 by hardmath last updated on 27/Aug/23
In △ABC show that Σ ((1 + cos ∙ (A − B) ∙ cos C)/(h_C ∙ sec C)) = (3/(2 R))
In△ABCshowthatΣ1+cos⋅(A−B)⋅cosChC⋅secC=32R

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