Identities Involving Operations in Sets Let Ø be the empty set, U be the universal set, A,B,C,X be any set. 1. XnØ=Ø 2. XnU= X 3. XUØ=X 4. XUU=U 5. (x°)° = X, the complement of the complement of a set is the set itself 6. (AUB)UC=AU(BUC) Associative property 7. AN(BNC)=(ANB)NC Associative property 8. AN(BUC)=(ANB)U(ANC) distributive property 9. AU(BNC)=(AUB)N(AUC) distributive property 10. (ANB)° = A° U B° De Morgan's Law %3D 11. (AUB)° = A°NB° De Morgan's Law 12. A-B = A N B° 13. AAB = (A-B) U (B-A) Exercises Draw a Venn diagram for each of the side (the right hand side and the left hand side of the equation) of the identities mentioned in the list of identities involving set operations. i. Let U= {1,2,3, . 20}, A={1,2, 3,4,5,6,7,8} , B= {2,3,4, 6,7,8,13,14,15}, C={2,4,6, ., 18,20}, and X= {10, 11, 12, ., 20}. Illustrate the identities involving operations in sets by solving the LHS and the RHS of the equations. ii.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter1: Expressions And Functions
Section1.3: Properties Of Numbers
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Identities Involving Operations in Sets
Let Ø be the empty set, U be the universal set, A,B,C,X be any set.
1. XnØ=Ø
2. XnU= X
3. XUØ=X
4. XUU=U
5. (x) = X, the complement of the complement of a set is the set itself
6. (AUB)UC=AU(BUC) Associative property
7. AN(BNC)=(ANB)nC Associative property
8. AN(BUC)=(ANB)U(ANC) distributive property
9. AU(BNC)=(AUB)N(AUC) distributive property
10. (ANB)° = A° U Bº De Morgan's Law
%3D
11. (AUB)° = A°NB° De Morgan's Law
%3D
12. A-B = An B°
13. АДВ %3 (А-В) U (В-А)
Exercises
Draw a Venn diagram for each of the side (the right hand side and the left hand
side of the equation) of the identities mentioned in the list of identities involving
set operations.
i.
Let U= {1,2,3, . 20}, A={1,2, 3,4,5,6,7,8}, B= {2,3,4, 6,7,8,13,14,15}, C={2,4,6, .,
18,20}, and X= {10, 11, 12, ., 20}. Illustrate the identities involving operations in
sets by solving the LHS and the RHS of the equations.
ii.
Transcribed Image Text:Identities Involving Operations in Sets Let Ø be the empty set, U be the universal set, A,B,C,X be any set. 1. XnØ=Ø 2. XnU= X 3. XUØ=X 4. XUU=U 5. (x) = X, the complement of the complement of a set is the set itself 6. (AUB)UC=AU(BUC) Associative property 7. AN(BNC)=(ANB)nC Associative property 8. AN(BUC)=(ANB)U(ANC) distributive property 9. AU(BNC)=(AUB)N(AUC) distributive property 10. (ANB)° = A° U Bº De Morgan's Law %3D 11. (AUB)° = A°NB° De Morgan's Law %3D 12. A-B = An B° 13. АДВ %3 (А-В) U (В-А) Exercises Draw a Venn diagram for each of the side (the right hand side and the left hand side of the equation) of the identities mentioned in the list of identities involving set operations. i. Let U= {1,2,3, . 20}, A={1,2, 3,4,5,6,7,8}, B= {2,3,4, 6,7,8,13,14,15}, C={2,4,6, ., 18,20}, and X= {10, 11, 12, ., 20}. Illustrate the identities involving operations in sets by solving the LHS and the RHS of the equations. ii.
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