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Question
If A = {1, 2, 3} and B = {x, y}, then the number of functions that can be defined from A into B is
Options
(a) 12
(b) 8
(c) 6
(d) 3
MCQ
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Solution
(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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