2. Let f: Z → Z be defined by f(x) = x² + 1, and let C = {1,2,3). Find f(C), ¹(C), f(f(C)) and f(f ¹(C)).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.5: Rational Functions
Problem 50E
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2. Let f: Z→ Z be defined by f(x) = x² + 1, and let C = {1,2,3).
Find f(C), f-¹(C), f(f(C)) and f(f-¹(C)).
Transcribed Image Text:2. Let f: Z→ Z be defined by f(x) = x² + 1, and let C = {1,2,3). Find f(C), f-¹(C), f(f(C)) and f(f-¹(C)).
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