<PRE><B>Question 402239</B>
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That depends.


Did you mean:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{3x}{x^2\ +\ 1}]


or


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{3x}{x^2}\ +\ 1]


In the first case the domain is all real numbers.  In the second case the domain is all real numbers excluding zero.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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