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There are way more than just 2 methods.
1. Write down the elements, works well for finite sets.
e.g.{1, 2, 3, pi, apple}
2. Sets have a pattern, P
e.g. {a | a x b < 0} (of course provided ba ahead of time)
2' Sets have a symbol or a name
e.g. Complex Numbers (denotes as a bolded C)
3. Countable sets, sets that can be written in a sequence.
Sequence (an)
Set {an}
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What is the Two methods in naming set?
method of concerning
What is the two methods in writing set?
1. listing method i.e A = {1, 2, 3, 4, 5} 2. set builder notation i.e B = {x | 1 < x < 10 and 3 | x}
What are the two methods of set notation?
1roster gagu 2 linements
What are the two ways in describing sets?
The Description Form, Roster Form, and The Set-Builder Notation Form.
Two ways of describing a set?
There are two ways of describing, or specifying the members of, a set. One way is by intensional definition, using a rule or semantic description. See this example: A is the set whose members are the first four positive integers. B is the set of colors of the French flag. The second way is by extension, that is, listing each member of the set. An extensional definition is notated by enclosing the list of members in braces: C = {4, 2, 1, 3} D = {blue, white, red}
