# Set Operation (Union of Sets): An Interactive Video

In real number system, we can do four fundamental operation to form new number by combining or manipulating one or more existing numbers.

For example, given two numbers $2$ and $3$, we can use

•  $+$ to form a new number $5$ by $2+3$
•  $\times$ to form a new number $6$ by $2 \times 3$

Similarly, we can do Set operation to form new Set by combining or manipulating one or more existing Sets. Set operation helps to combine two or more sets together to form a new set. The common example of set operations are

Union, Intersection, Difference, and Complement.

## Union of Sets

Let $A$ and $B$ be any two sets. Then union of sets $A$ and $B$ is a new set consisting all the elements of $A$ and $B$. It is denoted by $A \cup B$ and read as “A union B”.

In Symbol, $A \cup B = \{x: x \in A \text{ or } x\in B\}$.

## Also try this game, until the Next Video Comes!

This game is designed to introduce students to the idea of a set with Venn-Diagram. In this Game, Students will experiment with sets in conjunction with the Venn Diagram.

Venn-Diagram को Top Right मा ऊल्लेखित Set ले जनाउने भागलाई Venn-diagram मा Mouse ले  (Mobile मा वा touch screen मा हातको औलाले ) click गरेर red color लगाउनुहोस!

New Question मा Click गरेर पुनः यो game खेल्नुहोस

1. 2. 