Let U = {7, 8, 9, 10, 11, 12, 13}, A = {7, 8, 9, 10}, B = {7, 8, 11, 12}, and C = {9, 11, 13}. List all the members of the given set.

A ∪ (B ∩ C)

To find the members of the set A ∪ (B ∩ C), we need to perform two operations: intersection and union.

First, let's find B ∩ C, which means finding the common elements between sets B and C.
Set B = {7, 8, 11, 12}
Set C = {9, 11, 13}

The common elements between B and C are {11}.

Next, let's perform the union operation between set A and the result of B ∩ C.

Set A = {7, 8, 9, 10}
(B ∩ C) = {11}

Now, let's find the union of sets A and (B ∩ C), which means combining all the elements from both sets.
A ∪ (B ∩ C) = {7, 8, 9, 10} ∪ {11}

The union of sets A and (B ∩ C) is {7, 8, 9, 10, 11}.

Therefore, the members of the set A ∪ (B ∩ C) are {7, 8, 9, 10, 11}.