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X-intercept math problem

  1. Jun 6, 2007 #1
    1. The problem statement, all variables and given/known data

    a.Prove that the function f(x)=x-(arctan x)^2+8arctan x -19 has one x- intercept.
    b.Let Xo be the x-intercept of f(x). Use the intermediate value Theorem to find two consecutive integers n1,n2 such that n1 biger than Xo and Xo biger than n2

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jun 7, 2007 #2

    malawi_glenn

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    dude, no one will help you unless you show some work. What forumlas you know of and were you are stuck and so on.
     
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