What is the domain of Bessel function J1(x)?

[vigintitres]

Homework Statement

so, without typing the whole thing (because I do not know how to use any LaTeX or similar program) what is the domain for the Bessel function J(sub 1)(x) = ...

Homework Equations

I am to understand that taking the derivative of this monster will give me some kind of answer, but I do not know what this answer means or why I should be getting it via the derivative of the Bessel function

The Attempt at a Solution

ahhhhhh...no

 

[Dick]

Are you using the taylor series definition of the bessel function? If so, then write out some terms and think where it might be undefined and what it's radius of convergence is. You don't HAVE to use TeX to communicate what you mean but it helps. Find a post that used TeX and click on the TeX and you can see how they did it. Otherwise be creative with text. You have to do something, '...' is not very expressive. There is a large variety of ways to describe bessel functions.