Question

The sets D and J are given below.

D= {4,7,8)
J={-1,1,5,7,8)
Find the intersection of D and J.
Find the union of D and J.

Answer 1

D n J = {7,8} (intersection)

Values that satisfy both sets.

D u J = {-1,1,4,5,7,8} (union)

All values present in both sets.