SOLUTION: Verify the identity: {{{(1-cos(2x))/(2sin(x)+sin(2x))=tan(x/2)}}}

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Question 883445: Verify the identity: %281-cos%282x%29%29%2F%282sin%28x%29%2Bsin%282x%29%29=tan%28x%2F2%29
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Verify the identity: %281-cos%282x%29%29%2F%282sin%28x%29%2Bsin%282x%29%29=tan%28x%2F2%29
start with left side
%281-cos%282x%29%29%2F%282sin%28x%29%2Bsin%282x%29%29
%281-cos%5E2%28x%29%2Bsin%5E2%28x%29%29%2F%282sin%28x%29%2B2sin%28x%29cos%28x%29%29
%28sin%5E2%28x%29%2Bsin%5E2%28x%29%29%2F%282sin%28x%29%281%2Bcos%28x%29%29%29

verified: left side=right side