Math, asked by Ollljjfdsssfgj, 1 year ago

if abcd is a cyclic quadrilateral and a,b,c and d are its interior angles, then, prove tanA/2+tanB/2=cotC/2+cotD/2

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Answered by kavithadurai20oyfx68

21

In cyclic quadrilateral and a,b,c and d
are its interior angles

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