Mathematics
Mathematics, 16.12.2020 14:00, kellyzeissss4181

[tex]cos {}^{4} α+sin {}^{4} α= \frac{1}{4} (3+cos4α)
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[tex]cos {}^{4} α+sin {}^{4} α= \frac{1}{4} (3+cos4α)
Prove:...

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