1. Union
Exemple 1
B={6,7,8,9}
A={2,3,4,5} A B 6 2 3 7 4 8 5
{2,3,4,5,6,7,8,9} 9 OK

2. B
Union
Exemple 2
B={2,3,7,8,9}
A={2,3,} A 2 2 3 3 7 8
{2,3,7,8,9} 9 OK

3. Intersection
Exemple 3
B={7,8,9} A B
A={1,2,3} 3 7 1 9 2 8 OK

4. Intersection
Exemple 4 B
B={2,3,7,8,9}
A={2,3,} A 2 2 3 3 7 8
{2,3,} 9 OK

5. Relative complement or difference of sets
Exemple 5 A B
A={3,4,5,6}
B={7,8,9,10} 3 8 5 7 9 4 6 10
A – B
= {3,4,5,6} OK

6. Relative complement or difference of sets
Exemple 6 A B
A={3,4,5,6}
B={7,8,9,10} 3 7 4 9 5 8 10 6 OK
B– A
= {7,8,9,10}

7. Relative complement or difference of sets
Exemple 7 A
A={3,4,5,6,7,8} 5
B={7,8} 4 6 B 3 7 7 8 8
A– B
= {3,4,5,6} OK

8. Relative complement or difference of sets
Exemple 4
A={3,4,5,6,7,8}
B={7,8} A 5 6 4 B 7 7 3 OK 8 8
B – A=

9. U Complement Exemple 8 U ={1,2,3,4,5,6,7,8,9,10} B={2,3,4} A={3,7,8} 6OK
= {1,5,6,9,10}

10. U Complement Exemple 9 U ={1,2,3,4,5,6,7,8,9,10} B={2,3,4} A={3,7,8} 6
= {1,2,4,5,6,7,8,9,10} OK

11. การแสดงเขตพื้นที่แรเงาA B 2 2 3 3 1 1 1 1 2 4 4 2
การแสดงเขตพื้นที่แรเงา

12. Exemple 10
Draw a Venn diagram 0f the following set A B A B A B 1 2 3 1 2 3 1 2 3 4 4 4 OK

13. Exemple 11
Draw a Venn diagram 0f the following set A B A B 3 1 2 3 1 2 3 1 2 4 4 4 OK

14. Exemple 12
Draw a Venn diagram 0f the following set A B A B A B 1 2 3 1 2 3 2 3 1 4 4 4 OK 2

15. Exemple 13
Draw a Venn diagram 0f the following set A B A B A B 1 2 3 1 2 3 1 2 3 4 4 4 OK 2

16. Exemple 14
Draw a Venn diagram 0f the following set A B A B A B 1 2 3 1 2 3 3 1 1 2 4 4 4 OK 1 1

17. Exemple 15
Draw a Venn diagram 0f the following set A B A B A B 1 3 2 3 1 2 3 1 2 4 4 4 OK 1

18. Home work Practice 1.4 Page… 23 U A B
3)Make five copy of a given Venn diagram Use each copy to shade one of the following sets U A B

19. Home work Practice 1.4 Page… 24 U A B 6 1 2 4 7 5 3 8
4)Make four copy of a given Venn diagram Use each copy to shade one of the following sets U A B 6 1 2 4 7 5 3 8

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