Question

find the union of A = {1,2,3 } ; B= empty set ​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer :

A = {1,2,3}

B = {}

Union : A U B

⇒ {1,2,3}

More Information :-

• A set is a collection of well defined objects.
• Sets can be expressed in two ways i.e. roaster form and set builder form.
• A set that has finite number of elements is said to be finite set.
• A set that has infinite number of elements is said to be infinite set.
• A set that has only one number of elements is said to be singleton set.
• A set that has no element is said to be empty or null set.