Mathematics for IGCSE & O level - Sets (Section 1 - No. 49)
Which set operation describes the union of sets A and B?
The set of all elements belonging to both A and B.
The set of all elements belonging to either A or B (or both).
The set of all elements belonging to A but not B.
The set of all elements belonging to B but not A.
Explanation
The union includes all elements from either set.
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