Math Problem Statement

Are the statements about the sets F = {2, 4, 6, 8} and G = {odd numbers} true or false?

Solution

Let's analyze each statement based on the sets provided:

  1. F={2,4,6,8}F = \{2, 4, 6, 8\}, which contains even numbers only.
  2. G={odd numbers}G = \{\text{odd numbers}\}, meaning it contains all odd numbers.

Now, let's evaluate each statement:

Statement (a) FG=F \cup G = \emptyset

  • FGF \cup G represents the union of sets FF and GG, which combines all unique elements from both sets. Since FF contains even numbers and GG contains all odd numbers, the union FGF \cup G would include all elements from both sets. Therefore, FGF \cup G is not empty, as it includes both even and odd numbers.
  • Conclusion: The statement FG=F \cup G = \emptyset is false.

Statement (b) FG=F \cap G = \emptyset

  • FGF \cap G represents the intersection of sets FF and GG, meaning it includes elements that are in both FF and GG.
  • Since FF only has even numbers and GG only has odd numbers, there are no elements that are both in FF and GG. Therefore, FGF \cap G is indeed empty.
  • Conclusion: The statement FG=F \cap G = \emptyset is true.

Summary:

  • (a) False
  • (b) True

Would you like further explanation or have any questions?

Here are some related questions to deepen your understanding:

  1. What is the difference between the union and intersection of two sets?
  2. Can a union of two non-empty sets ever be empty?
  3. What would FGF \cup G look like if GG contained only odd numbers less than 10?
  4. If G={1,3,5,7}G = \{1, 3, 5, 7\}, what would FGF \cup G and FGF \cap G be?
  5. How do we represent the complement of a set, and what would it be in this context?

Tip: Remember, the union of two sets includes all elements in either set, while the intersection includes only those in both sets simultaneously.

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Math Problem Analysis

Mathematical Concepts

Set Theory
Union of Sets
Intersection of Sets

Formulas

Union of sets: A ∪ B
Intersection of sets: A ∩ B

Theorems

Union and Intersection properties

Suitable Grade Level

Grades 8-10