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}

1.{−2, −1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

2.{1, 4, 7, 11}

3.{−2, −1, 1, 4, 7, 11}

4.{}

Answer 1

it's choice two. make a set of the numbers that are in both sets

Answer 2

ty