SOLUTION: Prove the following identity: sin3x+ sinx= 2 sin2xcosx Help would be greatly appreciated!

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Question 1103337: Prove the following identity:
sin3x+ sinx= 2 sin2xcosx
Help would be greatly appreciated!
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Prove the following identity:
sin3x+ sinx= 2 sin2xcosx
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Is it sin^3(x) ?
Or sin(3x) ?