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Relations — Maths STD 11 Science — Question

Maharashtra BoardEnglish MediumSTD 11 ScienceMathsRelations3 Marks
Question
If A = {1, 2} and B = {1, 3}, find A × B and B × A.
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Answer

We have,
A = {1, 2} and B = {1, 3}
Now, A × B = {1, 2} × {1, 3}
= {(1, 1), (1, 3), (2, 1), (2, 3)}
and, B × A = {1, 3} × {1, 2}
= {(1, 1), (1, 2), (3, 1), (3, 2)}

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