Describe the following sets in Roster form:

{x N: x2< 25}.

First thing analyze the given data. x ϵ N that implies x is a natural number.


x2 < 25


x < ±5


As x belongs to the natural number that means x < 5.


All numbers less than 5 are 1,2,3,4.


Roster form will be {1,2,3,4}.


1