Mathematics, 19.06.2021 09:50, genyjoannerubiera

Prove that: sin4A/1+cos4A*cos2A/1+cos2A=tanA

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Prove that: sin4A/1+cos4A*cos2A/1+cos2A=tanA​

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Prove that: sin4A/1+cos4A*cos2A/1+cos2A=tanA