Даны множества \( A=\{5;\,6;\,7;\,8;\,9 \}\) и \( B=\{3;\,6;\,9;\,12 \} .\) Найдите множество \( A \cup B.\) \( A \cup B=\{6;\,9 \}\) \( A \cup B=\{3;\,5;\,6;\,7;\,8;\,9; \,12 \}\) \( A \cup B=\varnothing\) \( A \cup B=\{5;\,6;\,7;\,8;\,9\}\) \( A \cup B=\{3;\,6;\,9;\,12\}\)
Задание

Даны множества \(\displaystyle A=\{5;\,6;\,7;\,8;\,9 \}\) и \(\displaystyle B=\{3;\,6;\,9;\,12 \} \small.\)

Найдите множество  \(\displaystyle A \cup B\small.\)

  • \(\displaystyle A \cup B=\{6;\,9 \}\)
  • \(\displaystyle A \cup B=\{3;\,5;\,6;\,7;\,8;\,9; \,12 \}\)
  • \(\displaystyle A \cup B=\varnothing\)
  • \(\displaystyle A \cup B=\{5;\,6;\,7;\,8;\,9\}\)
  • \(\displaystyle A \cup B=\{3;\,6;\,9;\,12\}\)