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Math Help - Trigonometric equations

  1. #1
    Super Member
    Joined
    Jun 2008
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    829

    Trigonometric equations

    The sum of the roots of the equation:



    belonging to the interval [0;2\pi] is ?

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  2. #2
    MHF Contributor
    Joined
    Mar 2007
    Posts
    1,240

    Talking

    Does "tgx" mean "tan(x)"? What does "sen" mean? Does "2x" mean "an argument of 2x", or "squared, of x"?

    What have you tried so far? Where are you stuck?

    Thank you!
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