#themathsgurudev,Prove that in any triangle (b-c)cotA/2+(c-a)cotB/2+(a-b)cotC/2=0,CLASS 11 MATHS

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#themathsgurudev,Prove that in any triangle (b-c)cotA/2+(c-a)cotB/2+(a-b)cotC/2=0, CLASS 11 MATHEMATICS, NCERT,THE MATHS GURUDEV
  1. GURUDEV CLASSES
  2. #themathsgurudev
  3. Prove that in any triangle (b-c)cotA/2 (c-a)cotB/2 (a-b)cotC/2=0
  4. CLASS 11 MATHEMATICS
  5. NCERT
  6. THE MATHS GURUDEV
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