Let A={-1, ,1, -2, 2}, B={1, 4, -4}. Let A--> B where f(a)=Db and fis the square function f(a)=a²in this case the function Ontoa. TrueO b. False Which of the following is subset of set {1, 2, 3, 4}.Select one:O a (1}a. (1}O b. all the mentionedc. (1,4}d. (1, 2,3}Oe. (1 2}

A = {-1,1,-2,2}, B = {1,4,-4} A-->B such that f(a) = b Onto function :- if for each b∈B there…

Answered: Let A={-1, ,1, -2, 2}, B={1, 4, -4}.…

Let A={-1, ,1, -2, 2}, B={1, 4, -4}. Let A--> B where f(a)=Db and fis the square function f(a)=a² in this case the function Onto a. True O b. False

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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Question

Let A={-1, ,1, -2, 2}, B={1, 4, -4}. Let A--> B where f(a)=Db and fis the square function f(a)=a²
in this case the function Onto
a. True
O b. False

Which of the following is subset of set {1, 2, 3, 4}.
Select one:
O a (1}
a. (1}
O b. all the mentioned
c. (1,4}
d. (1, 2,3}
Oe. (1 2}

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