Question

what is set - builder form and roster form

Answer 1

sets are represented by two ways
1)roster form
2)set builder form

roster form : in any set all the elements written separated with commas are called roster form
set of vowels V= {a,e,i,o,u}
set builder form : sets are written in its common characteristic is called set builder form.
V= { x: x is vowel }