Conjuntos y Proposiciones lógicas

1003055705

Parte: 
A
Dados los conjuntos \begin{gather*} A = \{1, 2, 3, 4, 5, 6, 7, 8, 9\},\\ B = \{3, 4, 5, 6, 7\},\\ C = \{6, 7, 8, 9, 10, 11, 12\}, \end{gather*} calcula la unión \( A\cup B\cup C \).
\( \{1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11, 12\} \)
\( \{1, 2, 3, 4, 5, 6, 7, 8, 9\} \)
\( \{6, 7\} \)
\( \{1, 2, 10, 11, 12\} \)

1003055706

Parte: 
A
Dados los conjuntos \begin{gather*} A = \{ 3, 4, 5, 6, 7, 8\},\\ B = \{3, 4, 5, 6, 7\},\\ C = \{6, 7, 8, 9, 10,11\}, \end{gather*} calcula la intersección \( A\cap B\cap C \).
\( \{ 6, 7\} \)
\( \{3, 4, 5, 6, 7, 8, 9, 10, 11\} \)
\( \{3, 4, 5, 6, 7\} \)
\( \{9, 10, 11\} \)