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Verify the identity. Show your work. cos(α - β) - cos(α + β) = 2 sin α sin β
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Verify the identity. Show your work. cos(α - β) - cos(α + β) = 2 sin α sin β
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Mar 23, 2019
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Verify the identity. Show your work. cos(α - β) - cos(α + β) = 2 sin α sin β
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