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Thread: amplitude of a wave

  1. May 9th 2007, 08:29 AM #1
    khalid46
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    amplitude of a wave

    sorry if its a trivial question but what is the amplitude of the curve?

    3cos(3x)-(sqrt3)sin(3x)

    im not sure if this can be rewritten as a trig identity
    im stumped!

    thanx
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  2. May 9th 2007, 09:04 AM #2
    r_maths
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  3. May 9th 2007, 09:17 AM #3
    khalid46
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    Thumbs up

    thanx mate i appreciate the help.
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