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Which double angle or half angle identity would you use to verify that sin2x/2sin2x=cot x
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Which double angle or half angle identity would you use to verify that sin2x/2sin2x=cot x

User Bob Desaunois
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sin^2(x) / 2sin(2x) = cot(x)

The only double angle in that formula is sin(2x) sin(2x) = 0.5*(cosx)(sinx)
User Jmanrubia
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