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Let f: Z -> Z be given by f(x) = x^2 + 1. Then, f^(-1)(1) UNION f^(−1)(2) UNION f^(−1)(3) is equal to O a. {-1, 1} O b. {-1, 0, 1} O c. {-1, 0} O d. {0, 1, 2} O e. {0, 1}

Let f: Z -> Z be given by f(x) = x^2 + 1. Then, f^(-1)(1) UNION f^(−1)(2) UNION f^(−1)(3) is equal to O a. {-1, 1} O b. {-1, 0, 1} O c. {-1, 0} O d. {0, 1, 2} O e. {0, 1}

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Let f: Z -> Z be given by f(x) = x^2 + 1. Then, f^(-1)(1) UNION f^(−1)(2) UNION f^(−1)(3) is equal to O a. {-1, 1} O b. {-1, 0, 1} O c. {-1, 0} O d. {0, 1, 2} O e. {0, 1}
Transcribed Image Text:Let f: Z -> Z be given by f(x) = x^2 + 1. Then, f^(-1)(1) UNION f^(−1)(2) UNION f^(−1)(3) is equal to O a. {-1, 1} O b. {-1, 0, 1} O c. {-1, 0} O d. {0, 1, 2} O e. {0, 1}
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