Given:
A = {1, 2, 3, 4}
B = {2, 3, 6, 7}
Required:
Find A ∪ B.
Here we are to find the union of the sets.
The union of sets is a set containing all the elements that are in event A or Event B.
Thus, we have:
A ∪ B = {1, 2, 3, 4} ∪ {2, 3, 6, 7} = {1, 2, 3, 4, 6, 7}
ANSWER:
A ∪ B = {1, 2, 3, 4, 6, 7}