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Ta có:
\(A\cup B=\left\{ {1,2,3,4,6,8} \right\}\)
\(A\cup C=\left\{ {1,2,3,4,5,6} \right\}\)
\(B\cup C=\left\{ {2,3,4,5,6,8} \right\}\)
\(A\cap B=\left\{ {2,4} \right\}\)
\(A\cap C=\left\{ {3,4} \right\}\)
\(B\cap C=\left\{ {4,6} \right\}\)
\((A\cup B)\cap C=\left\{ {1,2,3,4,6,8} \right\}\cap \left\{ {3,4,5,6} \right\}=\left\{ {3,4,6} \right\}\)
\(A\cup (B\cap C)=\left\{ {1,2,3,4} \right\}\cup \left\{ {4,6} \right\}=\left\{ {1,2,3,4,6} \right\}\)
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