
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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Surjective functions

Transcribed Image Text:(c) How many surjective functions f: {1, 2, 3, 4, 5} {1, 2} are there if f(1) = 1? How does this
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number change if f(1) = 1 and f(2)=2? Show all your working and justify your answers.
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