Question

Look at the sets below.

{7, 8, 9, 10} {9, 10, 11, 12}

Which of the following shows the union of the sets?
Select one of the options below as your answer:

A.
{9, 10}
B.
{7, 8, 9, 10}
C.
{9, 10, 11, 12}
D.
{7, 8, 9, 10, 11, 12}

Answer 1

Example!

Union of {1,2,3} and {3,4,5} is {1,2,3,4,5}

Answer 2

D

Answer 3

Union is set A, or Set B, or Both