Question

PLEASE SOMEONE HELP ME WITH THIS PROBLEM!!!!

Answer 1

Answer:

$\{1,2,3,4,6,7,8,9\}$

Step-by-step explanation:

$\\\begin{itemize}\item A \cap B = \{ 5,6,9\}\\\item (A \cap B) ' = \{ 1,2,3,4,7,8\}\\\item C' = \{1,2,6,7,9\}\\\item (A\cap B)' \cup C' = \{1,2,3,4,6,7,8,9\}\end{itemize}$