9. Let A = {3,4,7,8) and B = (1,7,10). Which of the following sets are relations from A to B? R={(3,7). (4,7). (7,10).(8,1)).
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We have A×B={3,1), (3,7), (3,10), (4,1), (4,7), (4,10), (7,1), (7,7), (7,10), (8,1), (8,7),(8,10).
(i) here R1 is relation from A to B.
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A×B={3,1), (3,7), (3,10), (4,1), (4,7), (4,10), (7,1), (7,7), (7,10), (8,1), (8,7),(8,10). R1 is relation from A to B.
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