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Domain of a Relation

publish date: 2026/05/23 22:20:49.916315 UTC

In a relation defined as a set of ordered pairs, what constitutes the domain of the relation?

The set of all second elements from each pair

The set of all first elements from each pair

The union of all first and second elements

The entire Cartesian product from which the relation is taken

Introduction to Differential Calculus (Systematic Studies with Engineering Applications for Beginners) - 2012