Respuesta :

The Answer Is:

{3, 4, 7, 8, 10, 11}

The union of Set A and Set B is given by:

A U B = {3, 4, 7, 9}U{8, 9, 10, 11} =  {3, 4, 7, 8, 9, 10, 11}

How to find the union of the two sets?

For two sets A and B, the union:

A U B

Is the set that contains all the elements of A and B (not repeating elements).

Then if we have:

  • A = {3, 4, 7, 9}
  • B = {8, 9, 10, 11}

The union of these two sets is:

A U B = {3, 4, 7, 9}U{8, 9, 10, 11} =  {3, 4, 7, 8, 9, 10, 11}

(notice that the 9 appears in both sets, but in the union only one time).

If you want to learn more about the union of sets:

https://brainly.com/question/2166579

#SPJ2