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Prove that Sin8 theta - cos8 theta = (sin2 theta - cos2 theta)(1-2sin2 theta + cos2 theta)
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Sin8 theta - cos8 theta = (sin2 theta - cos2 theta)(1-2sin2 theta + cos2 theta)
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Prove that Sin8 theta - cos8 theta = (sin2 theta - cos2 theta)(1-2sin2 theta + cos2 theta)
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