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Sin6θ=6cos^5θ.sinθ-20.cos^3θ.sin^3θ+6.cosθ.sin^5θ
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Sin6θ=6cos^5θ.sinθ-20.cos^3θ.sin^3θ+6.cosθ.sin^5θ
Prove that sin6θ + cos6θ -3sin²θcos²θ = 1.
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