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9 votes
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If A = {a,b} and B = {1, 2, 3} then, find A×B and B×A and show them by a mapping diagram.

User Oskar Eriksson
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1 Answer

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18 votes

A × B = {a, b} × {1, 2, 3} = {{a, 1}, {a, 2}, {a, 3}, {b, 1}, {b, 2}, {b, 3}}

User Infinito
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