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fie multimea A[5:6:7] si B=[4;5] Multimea A reunit B este egala

Răspuns :

[tex] A = \Big\{5;6;7 \Big\}\\ B = \Big\{4;5 \Big\} \\ \\ A \cap B =\Big\{5;6;7 \Big\} \cap \Big\{4;5\Big\}\\ \\ \Rightarrow \boxed{A \cap B =\Big\{5 \Big\}}[/tex]