Question

If A = {roses, violets} and B = {lilies, carnations, violets, daisies}, what is A U B?

{lilies, carnations, daises}

{violets}

{roses, violets, lilies, carnations, daisies}

{ }

Answer 1

A U B
= {roses, violets, lilies, carnations, violets, daisies}
= {roses, violets, lilies, carnations, daisies}

Answer 2

Basically, with union, you put everything in one basket then remove any repetitions.

Answer 3

Since violets repeat twice, you remove one violet.