Question

Find A u B.
A: {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}
B: {−2, −1, 1, 4, 7, 11}
?????????????????

Answer 1

To form the union of two sets you combine the two sets but do not list any elements twice. For example:

Answer 2

so like -1 -2 1 2 3 4 5 6 7 8 9 10 11 12??