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A U (Bintersectat C) A= 2 3 5 8 9 ) B = 6 7 8 9 11 ) C = 1 2 3 6 7

Răspuns :

A={2,3,5,8,9}
B={6,7,8,9,11}
C={1,2,3,6,7}

B∩C={6,7}
AU(B∩C)={2,3,5,6,7,8,9}
[tex]A = \Big\{2,3,5,8,9\Big\};\quad B = \Big\{6,7,8,9,11\Big\}; \quad C = \Big\{1,2,3,6,7\Big\} \\ \\ B$ $\cap $ $ C = \Big\{6,7\Big\}\\ \\ \Rightarrow A$ $\cup$ $ (B $ $\cap$ $ C) = \Big\{2,3,5,8,9\Big\} $ $\cup $ $ \Big\{ 6,7\Big\} = \Big\{2,3,5,6,7,8,9\Big\}[/tex]