Algebra-1

Question Analysis
This question tests the student's understanding of set-builder notation and the union of two sets. The union includes all elements that are in either set or in both.

Key Concept Explanation
The union of two sets and , denoted as , is the set of all elements that are in , in , or in both. Set-builder notation is used to describe the elements of a set.

Step-by-step Solution
1. Identify the elements in set using set-builder notation:
2. Identify the elements in set using set-builder notation:

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