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let O be pt inside triangle ABC such that angle OAB=angle OBC=angle OCA=x,prove that cotx=cotA+cotB+cotC.

let O be pt inside triangle ABC such that angle OAB=angle OBC=angle OCA=x,prove that cotx=cotA+cotB+cotC.

Grade:12th pass

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
2 years ago
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