intersection meaning in two set

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intersection meaning in two set

Intersection meaning in two set:

common element in the set A and B is called intersection or same element in the set A and B is called intersection, intersection in math denoted by symbol ∩

Intersection diagram in two set

intersection meaning in two set
Common number in set A and set B is called intersection

Example of intersection meaning in two set

If we have set A = {1, 3, 6, 9} and set B= {2, 3, 7, 9}

SOLUTION:

A ∩ B= {1, 3, 6, 9} ∩ {2, 3, 7, 9}

A ∩ B= {3,  9} is the intersection of set A and B.

Intersection of PHY set. φ , Or null set

Set    A = {}  = φ    and set B = {1,6,9,10}

A ∩ B =  {}  ∩  {1,6,9,10}

A ∩ B  = {}  =  φ

Intersection of same set

if we have set

A = {1,2,3,4,5,6} and set B = {1,2,3,4,5,6}

A ∩ B  =  {1,2,3,4,5,6} ∩ {1,2,3,4,5,6}

SO

A ∩ B  = {1,2,3,4,5,6}

the result prove that when set A and Set B have number

(1)    A ∩ B  =  A

(2)     A ∩ B  =  B

We can write position set 1 and 2

(i) A ⊆ A ∩ B

(ii)  B  ⊆  A ∩ B

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