Math, asked by hemalatha2965, 6 months ago

prove that tan² A - tan² B=sin² A - sin² B / cos² A cos² B​

Answers

Answered by piyanoshi
5

Answer:

LHS:

tan2 A - tan2 B

Sin2 A / Cos2 A - Sin2 B / Cos2 B

Sin2 A.Cos2 B - Sin2 B.Cos2A / Cos2 A.Cos2 B

Sin2 A(1-Sin2 B) - Sin2 B (1- Sin2A) / Cos2 A.Cos2B

Sin2 A - Sin2 A.Sin2 B - Sin2 B +Sin2 B.Sin2 A / Cos2A.Cos2 B

Sin2 A - Sin2 B / Cos2 A.Cos2 B

LHS = RHS

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