Let X = {a, b, c}, Y = {a, c, b}, and Z = {a, b, b, c, c, c}. What are the elements of X, Y, and Z? How are X, Y, and Z related? How many elements are in the set {a, {a, b}, {a}}? For each positive integer x, let A, = {x, x²}. Find A1, A2, and A3.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.2: Exponents And Radicals
Problem 87E
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Answer the following, Thank you.

a. Let X = {a, b, c}, Y = {a, c, b}, and Z= {a, b, b, c, c, c}. What are the elements of
X, Y, and Z? How are X, Y, and Z related?
%3D
b. How many elements are in the set {a, {a, b}, {a}}?
c. For each positive integer x, let A, = {x, x}. Find A1, A2, and A3.
Transcribed Image Text:a. Let X = {a, b, c}, Y = {a, c, b}, and Z= {a, b, b, c, c, c}. What are the elements of X, Y, and Z? How are X, Y, and Z related? %3D b. How many elements are in the set {a, {a, b}, {a}}? c. For each positive integer x, let A, = {x, x}. Find A1, A2, and A3.
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