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Math Help - graph sketching

  1. #1
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    graph sketching

    How to sketch the graph of \sin x -3 \cos x

    i know i can do this : \sin x -3 \cos x = \sqrt{10} \sin({\color{red}x - 71.6})

    How can i sketch this when the one in red is not \theta or 2 \theta


    Thanks .
    Last edited by mr fantastic; August 11th 2009 at 03:53 AM. Reason: Fixed latex.
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  2. #2
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    Quote Originally Posted by thereddevils View Post
    How to sketch the graph of \sin x -3 \cos x

    i know i can do this : \sin x -3 \cos x = \sqrt{10} \sin({\color{red}x - 71.6})

    How can i sketch this when the one in red is not \theta or 2 \theta


    Thanks .
    Sketch the graph of y = \sqrt{10} \sin({\color{red}x}). Then translate the graph by 71.6 units to the right.
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  3. #3
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    Quote Originally Posted by mr fantastic View Post
    Sketch the graph of y = \sqrt{10} \sin({\color{red}x}). Then translate the graph by 71.6 units to the right.

    Thanks . Can u recommend me a useful online graphing software ?
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