1. Let X= {1, 2, 3, 4]. Determine whether or not each relation is a function from X into X.
(i) f= {(2, 3), (1, 4), (2, 1), (3, 2), (4,4)}
(ii) g= {(3, 1), (4, 2), (1, 1)}
(iii) h = {(2, 1), (3, 4), (1, 4), (4,4)}
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option B is the correct answer for your question
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