Another operation that can be defined on sets A and B is the difference of the sets, denoted by A − B. Here is the formal definition of the difference of sets A and B. A−B = {x | xA  and  xB} Thus A − B is the set of elements that belong to A but not to B. For instance, let A = {1, 2, 3, 7, 8} and B = {2, 7, 11}. Then A − B = {1, 3, 8}. Determine the difference, given that U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {2, 4, 6, 8}, and B = {2, 3, 4, 7}. (Enter your answers as a comma-separated list.) A−B'

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Another operation that can be defined on sets A and B is the difference of the sets, denoted by

A − B.

Here is the formal definition of the difference of sets A and B.

A−B = {x | xA  and  xB}

Thus

A − B

is the set of elements that belong to A but not to B. For instance, let

A = {1, 2, 3, 7, 8}

and

B = {2, 7, 11}.

Then

A − B = {1, 3, 8}.



Determine the difference, given that

U = {1, 2, 3, 4, 5, 6, 7, 8, 9},
A = {2, 4, 6, 8},

and

B = {2, 3, 4, 7}.

(Enter your answers as a comma-separated list.)

A−B'
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