\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Given the sets:
  • \(A = \{2, 4, 6, 8, 9\}\)
  • \(B = \{4, 5, 6\}\)
  • \(C = \{6, 7, 9\}\)
Find the set \( A \cup B \cup C \).
\(A \cup B \cup C =\)