SOLUTION: Prove the following identity Csc x

SOLUTION: Prove the following identity Csc x - 2 sin x= cos (2x)/sin x

Question 745381: Prove the following identity
Csc x - 2 sin x= cos (2x)/sin x
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Csc x - 2 sin x= cos (2x)/sin x
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Multiply thru by sin(x) to get:
1 - 2sin^2(x) = cos(2xs)
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That is one of the Pythagorean identities:
cos(2x) = cos(2x)
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Cheers,
Stan H.
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