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AonZ

  • 2 years ago

Check my working out pls :) write an expression for sin3x

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  1. AonZ
    • 2 years ago
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    sin(2x+x) sin2xcosx+cos2xsinx

  2. AonZ
    • 2 years ago
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    2sinxcosxcosx + sinx(1-sin^2 x) 2sinx cos^2 x + sinx - sin^3 x

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