Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole

Chapter 1 - Section 1.1 - Real Numbers - 1.1 Exercises: 43

Answer

a.) $A \cup C = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]$ b.) $A\cap C = [7]$

Work Step by Step

$Find$ $the$ $indicated$ $set$ $if:$ $A = [1, 2, 3, 4, 5, 6, 7]$ $B = [2, 4, 6, 8]$ $C = [7, 8, 9, 10]$ a.) $A \cup C$ We find the union of the variables for A and C. Place the units in chronological order $A \cup C = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]$ b.) $A \cap C$ We find what units in A and C intercept each other. We determine that A and C only intercept at 7 $A\cap C = [7]$

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.