Work Step by Step
The union of 2 sets is is all combination of all of the numbers in the 2 sets. In this case, numbers that are in (-$\infty$,5) [1,8) or both. Therefore, the set is (-$\infty$,8)
You can help us out by revising, improving and updating this answer.Update this answer
After 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.