For the universal set $U = \{ 1,2,3,4,5,6,7,8 \}$ and two subsets $$A = \{ 1,2,3 \} , \quad B = \{ 2,4,6,8 \}$$ Find the value of $n \left( A \cup B ^ { C } \right)$. [3 points]
For the universal set $U = \{ 1,2,3,4,5,6,7,8 \}$ and two subsets
$$A = \{ 1,2,3 \} , \quad B = \{ 2,4,6,8 \}$$
Find the value of $n \left( A \cup B ^ { C } \right)$. [3 points]