SOLUTION: find a formula for sin(3x) in terms of sin x and cos x. comments: 3x= 2x+x

Algebra ->  Trigonometry-basics -> SOLUTION: find a formula for sin(3x) in terms of sin x and cos x. comments: 3x= 2x+x      Log On


   

Question 977794: find a formula for sin(3x) in terms of sin x and cos x. comments: 3x= 2x+x
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
find a formula for sin(3x) in terms of sin x and cos x. comments: 3x= 2x+x
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Oooooh, thx. 3x=2x+x is a big help.
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Look on Wikipedia, "half angle formulas"
It's covered very well.