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Cartesian Product with the Empty Set

publish date: 2026/05/23 22:20:49.621781 UTC

Let \(A = \{1, 2, 3\}\) and \(B = \varnothing\). What is \(A \times B\)?

\(\{(1, \varnothing), (2, \varnothing), (3, \varnothing)\}\)

\(\varnothing\)

\(\{\varnothing\}\)

\(\{1, 2, 3\}\)

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