Question

Find infinite or finite of (1;2;3...........99;100.

Answer 1

Answer:


a , c , e are finite ,


b , d are infinite sets


Step-by-step explanation:


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Finite and infinite set :


A set is called a finite set


if it's cordinal number is a


definite whole number.


We can say that a set is infinite


if it is not finite .


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Now ,


a ) The set of months of a year.


Number of months in a year = 12


Therefore ,


It is a finite set.


b ) { 1 , 2 , 3 , 4 ,... }


Number of elements is infinite.


Therefore ,


It is an infinite set .


c ) { 1,2,3,.....,100 }


Number of elements in the set


= 100


Therefore ,


It is a finite set .


d ) The set of positive integers


greater than 100


= { 101, 102, 103 ,.... }


Number of elements is not


finite .


Therefore ,


It is a infinite set.


e ) Set of prime numbers less


than 99.


= { 2,3,5,7,11,13,17,19,...97 }


Number of elements is


Countable ( finite )


Therefore ,


It is a finite set .


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Answer 2

Step-by-step explanation:

if a set has a starting and end point both then it is finite but if it does not have a starting or end point then it is infinite set

if a set has a limited number of elements that it is fine and what its number of element is unlimited then it is alpha

so i think this is set of finite number that this have ending point