Given set is A = {x:x+3 = 3 and x € N }
A is an empty set .
Reason :-
Put x = 1 then x+3 = 1+3 = 4
Put x = 2 then x+3 = 2+3 = 5
If we put x = 1,2,3...
We get { 4,5,6...}
So there is no natural number for x to get x+3 = 3
So ,There is no element to write for the set A
A is an empty set .
Note :-If x€W then x+3 = 0+3 = 3 then A is not an empty set .
