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Question

If A = {1, 2, 3}, B = {x, y}, then the number of functions that can be defined from A to B in


A

12

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B

8

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C

6

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D

3

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Solution

The correct option is B

8


Given:
Number of elements in set A = 3
Number of elements in set B = 2
Therefore, the number of functions that can be defined from A into B is =23=8


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