Math Problem Statement

Use the given sets to find (A∩B)∩C ( A ∩ B ) ∩ C .

ABC={1,2,3,4,5,6,7,8}={5,7,9,11,13,15}={2,5,7,10,12,14}

Solution

We are given three sets, AA, BB, and CC, and the task is to find (AB)C(A \cap B) \cap C. Let's first break it down step by step.

Given Sets:

  • A={1,2,3,4,5,6,7,8}A = \{1, 2, 3, 4, 5, 6, 7, 8\}
  • B={5,7,9,11,13,15}B = \{5, 7, 9, 11, 13, 15\}
  • C={2,5,7,10,12,14}C = \{2, 5, 7, 10, 12, 14\}

Step 1: Find ABA \cap B (the intersection of sets AA and BB)

Intersection means the elements that are common in both sets.

AB={5,7}A \cap B = \{5, 7\} These are the only numbers present in both sets AA and BB.

Step 2: Find (AB)C(A \cap B) \cap C (the intersection of ABA \cap B with CC)

Now we find the intersection of AB={5,7}A \cap B = \{5, 7\} with set C={2,5,7,10,12,14}C = \{2, 5, 7, 10, 12, 14\}.

The common elements between {5,7}\{5, 7\} and CC are:

(AB)C={5,7}(A \cap B) \cap C = \{5, 7\}

Final Answer:

(AB)C={5,7}(A \cap B) \cap C = \{5, 7\}

Let me know if you would like more details on any of these steps!

Here are 5 related questions to expand on this concept:

  1. How do you find the union of sets AA, BB, and CC?
  2. What is the result of ABCA \cup B \cup C?
  3. How do you find ABA \setminus B (the difference between sets AA and BB)?
  4. What would (AB)C(A \cup B) \cap C look like?
  5. How do Venn diagrams help visualize set operations like intersection and union?

Tip: When working with set intersections, it helps to list out each element and cross-check them visually to ensure accuracy.

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Math Problem Analysis

Mathematical Concepts

Set Theory
Intersection of Sets

Formulas

Intersection of two sets: A ∩ B = {x | x ∈ A and x ∈ B}

Theorems

Commutativity of Intersection
Associativity of Intersection

Suitable Grade Level

Grades 6-8