11. consider the following sets:U = {-5, -4, -3, -2, —1,0,1,2,3,4,5},A = {x: x²= 25},B = {-5,0,1,2,3,4,5}C = {x: x2 − 5x +6=0}. c. Which set is equal to (B\A)¢?d. What is the cardinality of a countably infinite set?

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11. consider the following sets: U = {-5,-4, -3, -2,-1,0,1,2,3,4,5}, A = {x: x²= 25}, B = {-5,0,1,2,3,4,5}

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter10: Inequalities

Section10.3: Solving Problems Involving Inequalities

Problem 10E

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Question

11. consider the following sets:
U = {-5, -4, -3, -2, —1,0,1,2,3,4,5},
A = {x: x²= 25},
B = {-5,0,1,2,3,4,5}
C = {x: x2 − 5x +6=0}.

c. Which set is equal to (B\A)¢?
d. What is the cardinality of a countably infinite set?

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