MathAnalysisCalculusNumerical functions

Trigonometric functions

Theory

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Simplify the following expression

cos⁡4(α)+2⋅cos⁡2(α)⋅cos⁡2(π2−α)+cos⁡4(π2−α)\cos^4(\alpha) + 2 \cdot\cos^2(\alpha) \cdot \cos^2(\frac{\pi}{2} - \alpha) + \cos^4(\frac{\pi}{2} -\alpha).

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