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Math Help - Solve (sin x+pi) + x = 0

  1. #1
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    Solve (sin x+pi) + x = 0

    Could anyone please solve that for me step by step?
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  2. #2
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    yes ... get out your calculator, graph the function and calculate the zeros.

    you can't solve this equation using elementary algebraic methods.
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  3. #3
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    It may also help if you remember that

    \sin{(x + \pi)} = -\sin{x}.
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  4. #4
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    Solve (sin x+pi) + x = 0
    Quote Originally Posted by Prove It View Post
    It may also help if you remember that

    \sin{(x + \pi)} = -\sin{x}.
    did the OP mean \sin(x + \pi) or (\sin{x} + \pi) ???
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  5. #5
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    Talking

    Quote Originally Posted by skeeter View Post
    did the OP mean \sin(x + \pi) or (\sin{x} + \pi) ???
    I meant the latter, (my original). I do realise this can't be done with elementary algebra, what I would be interested in seeing such a step-by-step algebraic(ish) method.
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  6. #6
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by essaymasters View Post
    I meant the latter, (my original). I do realise this can't be done with elementary algebra, what I would be interested in seeing such a step-by-step algebraic(ish) method.
    the zero is somewhere around -3. (from graphing). you can approximate it better using iteration methods like the Newton-Raphson method or something
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