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If the set A has 3 elements and set B = {3,4,5} then go find the number of elements in (A×B)
Answers
Solution:-
given
Set of Elements A = 3
Set of B = { 3 , 4 , 5 }
To find :-
=> ( A × B )
Now
A = 3 and
B = { 3 , 4 , 5 } , it has 3 element
=> ( A × B )
=> 3 × 3
=> 9
The number of elements in ( A × B ) = 9
More information about set
SET :-
A ser is a collection of well defined distinct objects i.e the object follow a given rule or rules
If we say that we have a collection of short student in a class , then this collection is not a set , as short student is not well defined. if however, we say that we have a collection of students whose height is less than 5 feet , then it represents a set
Examples
1. Let 'A' is a collection of all vowels in English alphabet, then A ={ a , e , i , o , u } . Hence elements of A are distinguishable as well as distinct, then A is a set
2. The collection of all positive integers is a set
3. The collection of all students of IIT ( Roorke ) is a set