Найдите \(A \cap B\) и \(A \cup B\) , если:
\(A = \{3, 4, 5, 6, 7\}\) и \(B = \{3, 5, 7, 9\}\) .

• \(A \cap B = \{3, 4, 5, 7\}\) и \(A \cup B = \{3, 4, 5, 6, 7, 9\}\)
• \(A \cap B = \{3, 5, 6, 9\}\) и \(A \cup B = \{3, 4, 5, 6, 7, 9\}\)
• \(A \cap B = \{3, 7, 9\}\) и \(A \cup B = \{3, 4, 5, 6, 7, 9\}\)
• \(A \cap B = \{3, 5, 7\}\) и \(A \cup B = \{3, 4, 5, 6, 7, 9\}\)