If A = Set of whole numbers and B = Set of natural numbers, then A - B = ___.
{0}
{ }
A
{1}
If A = set of whole numbers and B = set of natural numbers, then the set of elements belonging to A and B is _____ .
If A = {set of whole numbers < 5} and B = {set of natural numbers < 6}, then A and B are________.
If A = {set of whole numbers less than 6} and B = {set of prime natural numbers less than 7}, then _________ .
If A = {set of th first four natural numbers} and B = {set of the first four whole numbers}, then sets A and B are _______.