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sin^(2)(n+1)A-sin^(2)nA=sin(2n+1)A sin A...

sin^(2)(n+1)A-sin^(2)nA=sin(2n+1)A sin A

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Prove that: sin^(2)(n+1)A-sin^(2)nA=sin(2n+1)As in A

Prove that sin^2(n+1)A-sin^2nA=sin(2n+1)AsinA

Prove that: sin^2(n+1)A-sin^2n A="sin"(2n+1)Asin A

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