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#themathsgurudev,In any triangle, prove that :c/(a-b)= (tanA/2+tanB/2)/(tanA/2-tanB/2), CLASS11 MATH
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#themathsgurudev,In any triangle, prove that :c/(a-b)= (tanA/2+tanB/2)/(tanA/2-tanB/2), CLASS11 MATHEMATICS, NCERT, CBSE,