Question

A={1,2,{3}, B={1,2,3} find AuB=?

Answer 1

Answer:

The union of set A and set B is represented by A U B and it is pronounced as A union B. The union set contains the elements that belong to either A or to B or to both. The element is written only once even if they exist in both the sets.

therefore,

A={1,2,{3}, B={1,2,3}

AuB= {1,2,3}