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onegirl

  • 3 years ago

Find the sum of sin2x and sinx

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  1. CliffSedge
    • 3 years ago
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    I don't understand the question. Don't you just add them together since that's what "sum" means?

  2. onegirl
    • 3 years ago
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    its trig identities

  3. CliffSedge
    • 3 years ago
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    Do you want it only in terms of sin(x)? Here's a list of identities. http://tutorial.math.lamar.edu/pdf/Trig_Cheat_Sheet.pdf

  4. across
    • 3 years ago
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    The best you can do is simplify the expression:\[ \sin2x+\sin x\\ 2\sin x\cos x+\sin x\\ \sin x(2\cos x+1) \]

  5. onegirl
    • 3 years ago
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    yea in terms of sinx

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