# The union of sets P = {5, 6, 7, 8, 9} Q = {1, 2, 3, 4, 5} is given by which of the following? {1, 2, 3, 4, 5, 6, 7, 8, 9} {1, 2, 3, 4, 5, 5, 6, 7, 8, 9} ø {5}

**Answer: First option.**

**Step-by-step explanation:**

** **Given two sets *A* and *B, *the union (*A*∪B) will be the set of elements which belong to either *A* or to *B* or to both.

Inf this case you have these two sets:

{} and {}

To find the union of these sets, put together the elements of the set *P* and the elements of the set *Q* (you need to remember that no element must be repeated).

Then, you get that the union of sets *P *and *Q* is:

∪{}

This matches with the first option.

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