Textbook Question
Round each decimal to the nearest thousandth. (a) 0.8 (line above 8) (b) 0.4 (line above 4) (c) 0.9762 (d) 0.8645
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0. Review of Algebra
Exponents
1:06 minutesProblem 83
Textbook Question
Let U = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, M = {0, 2, 4, 6, 8}, N = {1, 3, 5, 7, 9, 11, 13}, Q = {0, 2, 4, 6, 8, 10, 12}, and R = {0, 1, 2, 3, 4}.Use these sets to find each of the following. Identify any disjoint sets. M ∪ N
Verified step by step guidance1
Step 1: Understand the problem. You are given several sets and asked to find the union of sets M and N, denoted as \(M \cup N\). The union of two sets includes all elements that are in either set or both.
Step 2: Write down the sets explicitly: \(M = \{0, 2, 4, 6, 8\}\) and \(N = \{1, 3, 5, 7, 9, 11, 13\}\).
Step 3: To find \(M \cup N\), combine all unique elements from both sets without repeating any element.
Step 4: List the elements from \(M\) and then add elements from \(N\) that are not already in \(M\).
Step 5: After forming the union, check if \(M\) and \(N\) are disjoint by verifying if they have any common elements. If there are no common elements, the sets are disjoint.
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Video duration:
1mKey Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Set Union
The union of two sets combines all unique elements from both sets into one set. For example, the union of sets M and N, denoted M ∪ N, includes every element that is in M, in N, or in both, without duplicates.
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Disjoint Sets
Two sets are disjoint if they have no elements in common. Identifying disjoint sets involves checking whether their intersection is empty, meaning they share no elements.
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Set Notation and Elements
Understanding set notation and how elements are listed is essential. Sets are collections of distinct elements, and recognizing the elements in each set helps perform operations like union and intersection accurately.
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