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Prove that \(3\times(sin^{8}x - cos^{8}x) + 4\times(cos^{6}x - 2\times sin^{6}x) + 6\times sin^{4}x\) does not depend on \(x\)

Note by Jung Hyun Ran
2 years, 10 months ago

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Hint: \(\sin^2 (x) + \cos^2 (x) = 1 \) Pi Han Goh · 2 years, 10 months ago

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