Answer
$(-\infty,0)\cup(0,\infty)$.
Work Step by Step
The domain requirement for $f(x)=e^{|1/x|}$ is $x\ne0$ , in interval notation $(-\infty,0)\cup(0,\infty)$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.