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Estudos Gerais • 05/12/2025

(g) $\cos^8 A + \sin^8 A = 1 - \sin^2 2A + \frac{1}{8} \sin^...

(g) cos⁡8A+sin⁡8A=1−sin⁡22A+18sin⁡42A\cos^8 A + \sin^8 A = 1 - \sin^2 2A + \frac{1}{8} \sin^4 2A

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(g) $\cos^8 A + \sin^8 A = 1 - \sin^2 2A + \frac{1}{8} \sin^4 2A$
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