Mathematics, 26.08.2020 22:01 llama1314

Prove the following identity
cos^3a cos3a+sin^3a sin3a=cos^3 2a

Answers: 3

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Prove the following identity
cos^3a cos3a+sin^3a sin3a=cos^3 2a...

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Prove the following identity cos^3a cos3a+sin^3a sin3a=cos^3 2a

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Another question on Mathematics

Prove the following identity
cos^3a cos3a+sin^3a sin3a=cos^3 2a