SOLUTION: Prove as an identity; sin(2x) = (2tan(x)) / (1+tan^2(x))

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Question 756971: Prove as an identity;
sin(2x) = (2tan(x)) / (1+tan^2(x))
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Prove as an identity;
sin(2x) = (2tan(x)) / (1+tan^2(x))
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Start with RHS
2tanx/(1+tan^2x)
2tanx/(sec^2x)
2(sinx/cosx)/(1/cos^2x)
2sinxcosx=sin2x
verified:RHS=LHS