Discrete Mathematics and Its Applications, Seventh Edition

Published by McGraw-Hill Education
ISBN 10: 0073383090
ISBN 13: 978-0-07338-309-5

Chapter 2 - Section 2.3 - Functions - Exercises - Page 154: 32

Answer

a) f(Z) = Z = {.....,-2,-1,0,1,2,.....} b) f(N) = Even N+ = Even positive naturals = {0,2,4,6,......} c) f(R) = R = {.....,-2,-1.5,-1,0,1,1.5,2,.....}

Work Step by Step

a) f(Z) = Z = {.....,-2,-1,0,1,2,.....} b) f(N) = Even N+ = Even positive naturals = {0,2,4,6,......} c) f(R) = R = {.....,-2,-1.5,-1,0,1,1.5,2,.....}
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