Let $$\begin{array} { l }
U = \{ 1,2,3,4,5,6,7,8,9,10 \} \
A = \{ 2,4,6,8 \} \
B = \{ 3,9 \} \
C = \{ 2,3,4,9,10 \}
\end{array}$$ List all the members of the set. $\overline{ ( A \cup B ) \cup C} $
A) $\{ 1,7 \}$
B) $\{ 1,5,7 \}$
C) $\{ 1,2,3,4,5,7,9,10 \}$
D) $\{ 1,3,9,10 \}$
E) $\varnothing$

Question

Let $$\begin{array} { l } 
U = \{ 1,2,3,4,5,6,7,8,9,10 \} \
A = \{ 2,4,6,8 \} \
B = \{ 3,9 \} \
C = \{ 2,3,4,9,10 \}
\end{array}$$ List all the members of the set. $\overline{ ( A \cup B ) \cup C} $
A) $\{ 1,7 \}$
B) $\{ 1,5,7 \}$
C) $\{ 1,2,3,4,5,7,9,10 \}$
D) $\{ 1,3,9,10 \}$
E) $\varnothing$

Quizplus · Accepted Answer

The union of sets A, B, and C is $\{2,3,4,6,8,9,10\}$. The complement of this union in U is $\{1,5,7\}$.

Let U={1,2,3,4,5,6,7,8,9,10}A={2,4,6,8}B={3,9}C={2,3,4,9,10}\begin{array} { l } U = \{ 1,2,3,4,5,6,7,8,9,10 \} \\A = \{ 2,4,6,8 \} \\B = \{ 3,9 \} \\C = \{ 2,3,4,9,10 \}\end{array}U={1,2,3,4,5,6,7,8,9,10}A={2,4,6,8}B={3,9}C={2,3,4,9,10}​

Let $\begin{array} { l } U = \{ 1,2,3,4,5,6,7,8,9,10 \} \\A = \{ 2,4,6,8 \} \\B = \{ 3,9 \} \\C = \{ 2,3,4,9,10 \}\end{array}$