Question

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

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

{1, 4, 7, 11}

{−2, −1, 1, 4, 7, 11}

{ }

Answer 1

@jazy

Answer 2

Union = all the numbers belonging to both sets.

A union B = A+B = {-2, -1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

Answer 3

@dmezzullo