Let S = {a, b, c, d}, and let f1: S → S, f2: S → S and || f3: S → S be the following functions: fi = {(a, c), (b, a), (c, d), (d, b)}, f2 = {(a, b), (b, d), (c, d), (d, c)}, f3 = {(a, b), (b, b), (c, b), (d, b)}. For each of the functions f1, f2, f3, determine whether it is injective, surjective, and/or bijective. In the case of negative answers, provide a suitable reason.
Let S = {a, b, c, d}, and let f1: S → S, f2: S → S and || f3: S → S be the following functions: fi = {(a, c), (b, a), (c, d), (d, b)}, f2 = {(a, b), (b, d), (c, d), (d, c)}, f3 = {(a, b), (b, b), (c, b), (d, b)}. For each of the functions f1, f2, f3, determine whether it is injective, surjective, and/or bijective. In the case of negative answers, provide a suitable reason.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.6: Rational Functions
Problem 87E
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