Solution of
is
As learnt in concept
UNION OF SETS -
Let A and B be any two sets. The union of A and B is the set which consists of all the elements of A and all the elements of B, the common elements being taken only once. The symbol ‘∪’ is used to denote the union.
- wherein
Symbolically, we write A U B = {x: x ∈ A or x ∈ B}.
So
Option 1)
This is incorrect option
Option 2)
This is incorrect option
Option 3)
This is incorrect option
Option 4)
This is correct option