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How To Determine Intersection Of Set In Math

Intersection of a set A and B (A∩B) is the set whose members are members of the set A which is also a member of the set B.

The Intersection of set A and set B are denoted by:
A ∩ B = { x │x ∈ A dan x ∈ B}

Information:
: The symbols that express the Intersection
: The symbols that express the membership
: The symbol are read where
A ∩ B : Read "A Intersection B"
{ x │x ∈ A dan x ∈ B} : Read "x where x is a member of A and x is a member of B"

to determine the intersection of two sets can be with the following steps:

Write down what is known on the question and asked
Write the membership of the set
Specify the set Intersection

Example:
Find the intersection of A = {a, b, c, d, e} and B = {a, i, e, o, u} !!!!

Answer:

Step 1:
Write down what is known on the question and asked. So in this first step we have to write down all the things that are known and asked, so:
A = {a, b, c, d, e}
B = {a, i, e, o, u}

Asked:
A∩B = ????

Step 2:
In the second step we must write the membership of the set. To declare a membership of the set we use the symbol "∈". So the membership of set A and B is:
a ∈ A dan a ∈ B
b ∈ A
c ∈ A 
d ∈ A 
e ∈ A dan e ∈ B
i ∈ B
o ∈ B
u ∈ B

Step 3:
Specify the intersection. In this last step we have to determine the intersection of the two sets based on the sense of the intersection that the intersection are all the same members that are in the two sets. Then the intersection are:
A∩B = {a, e}

So this article.
Sorry if there is a wrong word.
The end of word wassalamualaikum wr. wb

Reference:

Sumber http://matematikaakuntansi.blogspot.com

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