how can I find the domain of this function?

 f(x) = (xsin(x) + cos(x) / 1 - cos(x)) + (|X| - 2 / x^2 -4)

I assume we don't want the dominator to be zero so f(x)1 1 - cos(x) != 0 and x^2 - 4 != 0? What is the next step

  • $\begingroup$ Welcome to Mathematica.SE, please take the tour and learn the basic rules of the site. Your question may be put on-hold because it seems to be off-topic, i.e. its about mathematics and not Mathematica. If that's not the case, edit your question to make it explicitly about Mathematica programming. Include a minimum example of the code you are working on and use the correct syntax. $\endgroup$
    – rhermans
    Commented Oct 25, 2014 at 0:17
  • $\begingroup$ go to help and look for FunctionDomain $\endgroup$ Commented Oct 25, 2014 at 1:35


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