Math, asked by kailash11, 1 year ago

sin(A+B)sin(A-B)=sin^Asin^B

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Answered by Anonymous

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https://math.stackexchange.com › questions

25-Jul-2012 · sin(A+B)sin(A−B)=(sinAcosB +cosAsinB)(sinAcosB−cosAsinB)=sin2Acos2 B−sin2Bcos2A=sin2Acos2B−sin2B(1−sin2A)= sin2A(cos2B+sin2B)−sin2B=sin2A ...

How do you prove sin(A+B) * sin(A-B) = sin^2 A - sin^2 B? | Socratic

https://socratic.org › ... › Proving

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