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Pro that tan A+tanB/cotA+cotB=tanA tanB

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Pro that tan A+tanB/cotA+cotB=tanA tanB
  • 1 answers

Srimathi Subramani 6 years, 10 months ago

Tan A+Tan B/1/Tan A+1/Tan B= Tan A+Tan B/ Tan A+Tan B/Tan A*Tan B= Tan A*TanB (as tanA+tanB and tanA + tanB gets cancelled) hence proved.
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