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# Let X = {1, 2, 3, 4}. Examine whether each of the relations given below is a function from X to X or not. Explain.  (i) f = {(2, 3), (1, 4), (2, 1), (3, 2), (4, 4)}  (ii) g = {(3, 1), (4, 2), (2, 1)}  (iii) h = {(2, 1), (3, 4), (1, 4), (4, 3)}

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(i) f is not a function
(ii) g not a function
(iii) h is a function.
answered Jun 29, 2014