Venn Diagram Sets E3154E
1. **Problem Statement:** We have a universal set $U = \{1, 2, 3, \ldots, 29\}$.
Set $A$ consists of odd numbers between 10 and 20.
Set $B$ consists of factors of 28.
We want to analyze these sets and understand their elements for a Venn diagram.
2. **Find Set $A$:** Odd numbers between 10 and 20 are $11, 13, 15, 17, 19$.
So, $A = \{11, 13, 15, 17, 19\}$.
3. **Find Set $B$:** Factors of 28 are numbers that divide 28 exactly.
The factors of 28 are $1, 2, 4, 7, 14, 28$.
So, $B = \{1, 2, 4, 7, 14, 28\}$.
4. **Find Intersection $A \cap B$:** Elements common to both $A$ and $B$.
Check each element of $A$ in $B$:
- 11 not in $B$
- 13 not in $B$
- 15 not in $B$
- 17 not in $B$
- 19 not in $B$
So, $A \cap B = \emptyset$.
5. **Find Union $A \cup B$:** All elements in $A$ or $B$.
$A \cup B = \{1, 2, 4, 7, 11, 13, 14, 15, 17, 19, 28\}$.
6. **Find Complements:**
- $A^c = U - A = \{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, \ldots, 29\} \setminus \{11, 13, 15, 17, 19\}$
- $B^c = U - B = \{3, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29\}$
7. **Summary for Venn Diagram:**
- $A = \{11, 13, 15, 17, 19\}$
- $B = \{1, 2, 4, 7, 14, 28\}$
- $A \cap B = \emptyset$
- $U = \{1, 2, 3, \ldots, 29\}$
Since $A$ and $B$ have no common elements, the Venn diagram will show two disjoint circles inside the universal set rectangle.
This completes the analysis.