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Math Help - Trigonometry : Solving trigonometric functions

  1. #1
    dMh
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    Trigonometry : Solving trigonometric functions

    Solve for x:

    x = cotx , where x E [0, pi]





    ---
    I have no idea how to solve for 'x' in this equation.

    Some advice please?
    Many thanks in advance,
    dMh
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  2. #2
    Master Of Puppets
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    You will need to use a numerical method to solve this, try Newton's or the Bisection method.
    Last edited by pickslides; April 5th 2010 at 03:01 PM. Reason: *sp
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  3. #3
    dMh
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    I've never heard of either methods.

    I'm taking "pre-calculus" at the moment and haven't learned too much.
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  4. #4
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    Quote Originally Posted by dMh View Post
    I've never heard of either methods.

    I'm taking "pre-calculus" at the moment and haven't learned too much.
    graph y = x-\frac{1}{\tan{x}} in your calculator (make sure your calculator is in radian mode) and look for the zero(s) in the given interval.
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  5. #5
    dMh
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    Quote Originally Posted by skeeter View Post
    graph y = x-\frac{1}{\tan{x}} in your calculator (make sure your calculator is in radian mode) and look for the zero(s) in the given interval.

    Why y = x-\frac{1}{\tan{x}}?

    Not y = \frac{1}{\tan{x}} -x?
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  6. #6
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    Quote Originally Posted by dMh View Post
    Why y = x-\frac{1}{\tan{x}}?

    Not y = \frac{1}{\tan{x}} -x?
    either one will work ... you're looking for the zero(s)
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