#### Answer

The union of two sets A and B, is a new set, let's call it C, which contains every element of A and B, without duplicates.

#### Work Step by Step

The union of two sets A and B, is a new set, let's call it C, which contains every element of A and B, without duplicates.
Example:
Set A: {1,2,3}
Set B: {2,3,4}
Set C: {1,2,3,4}