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Question
Find A × B, A × A and B × A :
A = B = {p, q}
Sum
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Solution
A = B = {p, q}
A × B = {p, q} × {p, q}
= {(p, p) (p, q) (q, p) (q, q)}
A × A = {p, q} × {p, q}
= {(p, p) (p, q) (q, p) (q, q)}
B × A = {p, q} × {p, q}
= {(p, p) (p, q) (q, p) (q, q)}
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Chapter 1: Relations and Functions - Exercise 1.1 [Page 6]
