a) Define the union, intersection, difference, and

Chapter 2, Problem 5RQ

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QUESTION:

a) Define the union, intersection, difference, and symmetric difference of two sets.________________b) What arc the union, intersection, difference, and symmetric difference of the set of positive integers and the set of odd integers?

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QUESTION:

a) Define the union, intersection, difference, and symmetric difference of two sets.________________b) What arc the union, intersection, difference, and symmetric difference of the set of positive integers and the set of odd integers?

ANSWER:

Solution:Step-1:1. In this problem we need to define the union , intersection , difference , and symmetric difference of of two sets. UNION: The union of two sets A and B is the set containing all elements that are in A or in B ( possibly both). Then it is denoted by , we can write if and only if or . Note : Example : A= { a, b} , B = {b ,c} then . The union of sets A and B is shown by the shaded area in the venn diagram: INTERSECTION: The intersection of two sets A and B is the set containing all elements that are both in A and B. Then i

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