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# What is the union of these two sets 1 2 3 and 3 4 5?

Updated: 9/21/2023

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12y ago

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Q: What is the union of these two sets 1 2 3 and 3 4 5?
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### How is union of sets differ from interesection of set?

A union is both sets together, excluding duplicates. So given the sets [1, 2, 3, 4, 5] and [5, 6, 7], the union of them together would be [1, 2, 3, 4, 5, 6, 7]. The intersection is just what the sets have in common, so in those two sets the intersection would be [5], because that is the only thing that they have in common.

### What is a union in mathematics?

The (operation) union in mathematics usually refers to sets of numbers and means the combination of those sets. The best way to describe it is to use an example: Take some set A with the numbers 1, 2, 3, 4, 5 in it and some set B with the numbers 1, 3, 5, 7, 9 in it. The union of these two sets would be the list of all things (list of elements) that is in EITHER set. As long as something is in one of the sets, it's in the union of the sets. Going with the example, the union of these two sets would be 1, 2, 3, 4, 5, 7, 9. Note though that you do NOT count something twice if it's in both sets, it's only counted once.

### What is union and intersection of sets?

Given any two sets, for instance, A={ai} and B={bi}, the union of the sets are the values that are contained in either A orB, whereas the intersection of the sets are the values that are contained in both A and B.For instance, let A={1, 2, 4, 6, 9, 12} and B={1, 5, 7, 9, 11, 15}, then the union would be A&cup;B={1, 2, 4, 5, 6, 7, 9, 11, 12, 15} and the intersection would be A&cap;B={1, 9}.

### Explain union and intersection of sets?

The union of two or more sets is a set containing all of the members in those sets. For example, the union of sets with members 1, 2, 3, and a set with members 3, 4, 5 is the set with members 1, 2, 3, 4, 5. So we can write:Let A = {1. 2. 3} and B = {3, 4, 5}, thenA&cup;B = {1, 2, 3, 4, 5}The intersection of two or more sets is the set containing only the members contained in every set. For example, the intersection of a set with members 1, 2, 3, and a set with members 3, 4, 5 is the set with only member 3. So we can write:Let A = {1. 2. 3} and B = {3, 4, 5}, thenA &cap; B = {3}

### What is the union of the two sets A 2 3 6 11 16 and B 6 11 2 3 6 11 16 2 3 16 6 11 16?

The union of sets A and B is {2, 3, 6, 11, 16}

### How do you find the union of two set?

The union of two sets A and B is the collection of points which are in A or in B (or in both):A simple example:Another typical example:Other more complex operations can be done including the union, if the set is for example defined by a property rather than a finite or assumed infinite enumeration of elements. As an example, a set could be defined by a property or algebraic equation, which is referred to as a solution set when resolved. An example of a property used in a union would be the following:A = {x is an even number, x > 1}B = {x is an odd number, x > 1}If we are then to refer to a single element by the variable "x", then we can say that x is a member of the union if it is an element present in set A or in set B, or both.Sets cannot have duplicate elements, so the union of the sets {1, 2, 3} and {2, 3, 4} is {1, 2, 3, 4}. Multiple occurrences of identical elements have no effect on the cardinality of a set or its contents. The number 9 is not contained in the union of the set of prime numbers {2, 3, 5, 7, 11, &acirc;&euro;&brvbar;} and the set of even numbers {2, 4, 6, 8, 10, &acirc;&euro;&brvbar;}, because 9 is neither prime nor even.

### What are the example of Equality?

Two sets are equal if they contain the same identical elements. If two sets have only the same number of elements, then the two sets are One-to-One correspondence. Equal sets are One-to-One correspondence but correspondence sets are not always equal sets.Ex: A: (1, 2, 3, 4)B: (h, t, m, k)C: (4, 1, 3, 2)A and C are Equal sets and 1-1 correspondence sets.

### What are the examples of equal set?

Two sets are equal if they contain the same identical elements. If two sets have only the same number of elements, then the two sets are One-to-One correspondence. Equal sets are One-to-One correspondence but correspondence sets are not always equal sets.Ex: A: (1, 2, 3, 4)B: (h, t, m, k)C: (4, 1, 3, 2)A and C are Equal sets and 1-1 correspondence sets.

### What is a Verband?

der Verband (pl. Verb&auml;nde) has two sets of meanings and can be translated as follows: 1. (umbrella) organisation, federation, association, union, (in military contexts) unit, detachment 2. bandage, dressing

### Why equal set are equivalent set but equivalent set are not equal set?

Two sets are equivalent if they have the same cardinality. In [over-]simplified terms, if they have the same number of distinct elements. Two sets are equal if the two sets contain exactly the same distinct elements. So {1, 2, 3} and {Orange, Red, Blue} are equivalent but not equal. {1, 2, 3} and {2, 2, 2, 3, 1, 3} are equal.

### Is 1 a prime number explain why?

1 is neither prime nor composite because there is only one set of multiples to receive 1, as opposed to 2 which is prime because there are two sets of multiples to receive 2, 2 X 1 and 1 X 2. To be prime there can only be two sets of multiples to receive the number, and for composite there has to be more than two.

### What is disjointed set?

ExplanationFormally, two sets A and B are disjoint if their intersection is the empty set, i.e. if This definition extends to any collection of sets. A collection of sets is pairwise disjoint or mutually disjoint if, given any two sets in the collection, those two sets are disjoint.Formally, let I be an index set, and for each i in I, let Ai be a set. Then the family of sets {Ai : i &isin; I} is pairwise disjoint if for any i and j in I with i &ne; j,For example, the collection of sets { {1}, {2}, {3}, ... } is pairwise disjoint. If {Ai} is a pairwise disjoint collection (containing at least two sets), then clearly its intersection is empty:However, the converse is not true: the intersection of the collection {{1, 2}, {2, 3}, {3, 1}} is empty, but the collection is not pairwise disjoint. In fact, there are no two disjoint sets in this collection.A partition of a set X is any collection of non-empty subsets {Ai : i &isin; I} of X such that {Ai} are pairwise disjoint andSets that are not the same.