Question

If r = {−1, 0, 1, 2, 4, 5} and s = {4, 5, 6}, find r ∩ s.

a. {4, 5}
b. {0, 5}
c. {5}
d. {−1, 5}

Answer 1

The intersection of the sets r and s is {4, 5}.

Step-by-step explanation:

To find the intersection of two sets, we need to find the elements that are common to both sets. In this case, the sets are r = {−1, 0, 1, 2, 4, 5} and s = {4, 5, 6}. The intersection of r and s, denoted by r ∩ s, is the set of elements that are present in both r and s. So, the intersection of r and s is {4, 5}.