chrisbillakings Asked: June 12, 2021 In: Mathematics Union of a set 1k What is Union of a set in set theory Union of a set, Set theory, Mathematics Share Facebook You must be logged in to Answer this question! kindly login here or sign up here 1 Answer Voted Solutionwheels Best Answer 2021-06-12T23:52:23+00:00 Added an answer on June 12, 2021 at 11:52 pm V The Union (∪) of a Set The union of two set is a set containing all elements that are in A or in B (​possibly both). Union is denoted by Symbol ∪: “union” Example: A = {1, 2, 3, 5, 7} and B = {2, 4, 6, 8, 10} D = {9, 10} Find 1. A ∪ B 2. B ∪ D Solution 1. A ∪ B = {1, 2, 3, 4, 5, 6, 7, 8, 10} 2. B ∪ D = {2, 4, 6, 8, 9, 10} In general, A ∪ B = {x ∈ A or x ∈ B}. Deleted
The Union (∪) of a Set
The union of two set is a set containing all elements that are in A or in B (​possibly both). Union is denoted by Symbol ∪: “union”
Example:
A = {1, 2, 3, 5, 7} and
B = {2, 4, 6, 8, 10}
D = {9, 10}
Find
1. A ∪ B
2. B ∪ D
Solution
1. A ∪ B = {1, 2, 3, 4, 5, 6, 7, 8, 10}
2. B ∪ D = {2, 4, 6, 8, 9, 10}
In general, A ∪ B = {x ∈ A or x ∈ B}.