SOLUTION: PLEASE help prove the identity? (1-cos2x)/tanx = sin2x

Question 644034: PLEASE help prove the identity?
(1-cos2x)/tanx = sin2x

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

start with left side and prove it's equal to right side

....use identity

=....use identity

=....pull in front of

=

=

=

=.....we arrived to the right side of your identity and it proves your identity

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