Question

Write the following sets in roster form B=(x:x is a natural number smaller than 6)

Answer 1

We can write the elements in three forms

They are:
+ Descriptive Form:
In this, the elements are written by words and it does not contain any symbols.
Eg. A = A set of natural numbers less than 6


+ Set Builder Form:
In this, the elements are written like using some symbolic representation and words.
Eg. { X:X belongs to N which is < 6 }

+ Roster Form:
In this, the elements are written clearly and we can identify what is the set about.
Eg. { 1,2,3,4,5}

So, your answer is

B = { 1, 2, 3, 4, 5 }