Ответ:

а)

\(A=\{4,6,8,10,12,14,16\}\);

\(B=\{4,8,12,16\}\);

\(C=\{6,12\}\).

б)

  • \(A\cap B=\{4,8,12,16\}\);
  • \(A\cap C=\{6,12\}\);
  • \(B\cap C=\{12\}\);
  • \(A\cup B=\{4,6,8,10,12,14,16\}\);
  • \(A\cap C\cap B=\{12\}\);
  • \(A\cup B\cup C=\{4,6,8,10,12,14,16\}\).