Evaluate
2\cos(5\alpha )\left(\cos(3\alpha )-\cos(\alpha )\right)
Differentiate w.r.t. α
\sin(2\alpha )\left(256\left(\sin(\alpha )\right)^{2}\left(\cos(\alpha )\right)^{4}-256\left(\cos(\alpha )\right)^{2}\left(\sin(\alpha )\right)^{4}+18\left(\sin(\alpha )\right)^{4}+18\left(\cos(\alpha )\right)^{4}-15\left(\sin(2\alpha )\right)^{2}-24\cos(2\alpha )-2\right)
Quiz
Trigonometry
5 problems similar to:
\cos 2 \alpha - \cos 4 \alpha - \cos 6 \alpha + \cos 8 \alpha
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