Math Problem Statement

Find A' ∪ (B ∩ C'), where U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, A = {1, 3, 5, 7, 9}, B = {2, 4, 5, 6, 8}, and C = {3, 6, 7, 9}.

Solution

Let's break down the problem step by step:

We are given the following sets:

  • U={1,2,3,4,5,6,7,8,9,10}U = \{1, 2, 3, 4, 5, 6, 7, 8, 9, 10\} (Universal set)
  • A={1,3,5,7,9}A = \{1, 3, 5, 7, 9\}
  • B={2,4,5,6,8}B = \{2, 4, 5, 6, 8\}
  • C={3,6,7,9}C = \{3, 6, 7, 9\}

The problem asks for A(BC)A' \cup (B \cap C'), where:

  • AA' is the complement of set AA (elements in UU but not in AA),
  • CC' is the complement of set CC,
  • BCB \cap C' is the intersection of sets BB and CC',
  • Then, we take the union A(BC)A' \cup (B \cap C').

Step 1: Find AA'

The complement of AA with respect to UU is: A=UA={2,4,6,8,10}A' = U - A = \{2, 4, 6, 8, 10\}

Step 2: Find CC'

The complement of CC with respect to UU is: C=UC={1,2,4,5,8,10}C' = U - C = \{1, 2, 4, 5, 8, 10\}

Step 3: Find BCB \cap C'

Now, find the intersection of BB and CC': B={2,4,5,6,8}B = \{2, 4, 5, 6, 8\} C={1,2,4,5,8,10}C' = \{1, 2, 4, 5, 8, 10\} The intersection BCB \cap C' is: BC={2,4,5,8}B \cap C' = \{2, 4, 5, 8\}

Step 4: Find A(BC)A' \cup (B \cap C')

Now, take the union of AA' and BCB \cap C': A={2,4,6,8,10}A' = \{2, 4, 6, 8, 10\} BC={2,4,5,8}B \cap C' = \{2, 4, 5, 8\} The union A(BC)A' \cup (B \cap C') is: A(BC)={2,4,5,6,8,10}A' \cup (B \cap C') = \{2, 4, 5, 6, 8, 10\}

Thus, the result of A(BC)A' \cup (B \cap C') is {2,4,5,6,8,10}\{2, 4, 5, 6, 8, 10\}.

Would you like a deeper explanation of any step? Here are some related questions you can explore:

  1. What is the difference between intersection and union of sets?
  2. How do you find the complement of a set in a universal set?
  3. Can a union of two sets be smaller than their intersection?
  4. What is the role of the universal set in set operations?
  5. How does De Morgan's Law apply to set complements?

Tip: Always make sure to differentiate between the union and intersection of sets when solving such problems.

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Math Problem Analysis

Mathematical Concepts

Set Theory
Union of Sets
Intersection of Sets
Complement of Sets

Formulas

A' = U - A (Complement of A)
C' = U - C (Complement of C)
B ∩ C' (Intersection of B and C')
A' ∪ (B ∩ C') (Union of A' and B ∩ C')

Theorems

Set Operations
De Morgan's Law

Suitable Grade Level

Grades 8-10