Refer to the following Venn diagram. 12 A B 15 20 U Find the following. (a) n(A n B) (b) n(A° n Bº) (c) n[(A n B)°] (d) n(A° U Bº) (e) n[(A n Bº) U (A°n B)] (f) n(U^)

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only need parts (d) (e) and (f)

### Educational Resource on Venn Diagrams

#### Venn Diagram Representation

The Venn diagram contains two intersecting circles labeled \(A\) and \(B\), set inside a universal set \(U\). The elements are distributed as follows:
- Set \(A\) contains two regions: one with 12 elements and the intersection with \(B\) that has 3 elements.
- Set \(B\) contains two regions: one with 15 elements and the intersection with \(A\) that has 3 elements.
- The region outside both sets \(A\) and \(B\), within the universal set \(U\), contains 20 elements.

#### Exercises

Find the following using the Venn diagram:

(a) \( n(A \cap B) \)  
    [ ]

(b) \( n(A^c \cap B^c) \)  
    [ ]

(c) \( n[(A \cap B)^c] \)  
    [ ]

(d) \( n(A^c \cup B^c) \)  
    [ ]

(e) \( n[(A^c \cap B^c) \cup (A^c \cap B)] \)  
    [ ]

(f) \( n(U^c) \)   
    [ ]


#### Explanation of Terms

- \( n(A \cap B) \): Number of elements in the intersection of sets \(A\) and \(B\).
- \( A^c \): Complement of set \(A\), elements not in \(A\).
- \( B^c \): Complement of set \(B\), elements not in \(B\).
- \( n(A^c \cap B^c) \): Number of elements in the intersection of complements of \(A\) and \(B\).
- \( n[(A \cap B)^c] \): Number of elements not in the intersection of \(A\) and \(B\).
- \( n(A^c \cup B^c) \): Number of elements in the union of complements of \(A\) and \(B\).
- \( n(U^c) \): Number of elements outside the universal set \(U\), typically zero if \(U\
Transcribed Image Text:### Educational Resource on Venn Diagrams #### Venn Diagram Representation The Venn diagram contains two intersecting circles labeled \(A\) and \(B\), set inside a universal set \(U\). The elements are distributed as follows: - Set \(A\) contains two regions: one with 12 elements and the intersection with \(B\) that has 3 elements. - Set \(B\) contains two regions: one with 15 elements and the intersection with \(A\) that has 3 elements. - The region outside both sets \(A\) and \(B\), within the universal set \(U\), contains 20 elements. #### Exercises Find the following using the Venn diagram: (a) \( n(A \cap B) \)     [ ] (b) \( n(A^c \cap B^c) \)     [ ] (c) \( n[(A \cap B)^c] \)     [ ] (d) \( n(A^c \cup B^c) \)     [ ] (e) \( n[(A^c \cap B^c) \cup (A^c \cap B)] \)     [ ] (f) \( n(U^c) \)     [ ] #### Explanation of Terms - \( n(A \cap B) \): Number of elements in the intersection of sets \(A\) and \(B\). - \( A^c \): Complement of set \(A\), elements not in \(A\). - \( B^c \): Complement of set \(B\), elements not in \(B\). - \( n(A^c \cap B^c) \): Number of elements in the intersection of complements of \(A\) and \(B\). - \( n[(A \cap B)^c] \): Number of elements not in the intersection of \(A\) and \(B\). - \( n(A^c \cup B^c) \): Number of elements in the union of complements of \(A\) and \(B\). - \( n(U^c) \): Number of elements outside the universal set \(U\), typically zero if \(U\
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