Test de evaluare pentru operatii cu multimi

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1. Fie multimile A = { 5, 6, 7, 8} ; B = {7, 8, 9, 10} Aflati A U B *

2 points

A U B = {5 ,6, 7, 8, 9}

A U B = {5, 6, 7, 8, 9, 10}

A U B = {6, 7, 8, 9, 10}

A U B = {5, 6, 7, 9, 10}

A U B = {7, 8}

2. Fie A = {10, 11, 12, 13, 14}; B = {11, 13, 15, 16} Aflati A ∩ B *

2 points

A ∩ B = {11, 13}

A ∩ B = {11}

A ∩ B = {13}

A ∩ B = {10, 11, 12, 13, 14, 15, 16}

A ∩ B = { ∅ }

3. Fie A = {10, 20, 30, 40}; B = {20, 25, 30, 35} Aflati A \ B *

2 points

A \ B = {10, 20}

A \ B = {10, 40}

A \ B = {10, 20, 30}

A \ B = {25, 35}

A ∩ B = { 10, 20, 30, 40, 25, 35 }

4. Fie A = {9, 6, 8, 3}, B={8, 5, 7, 9}, C={2, 3, 4, 5}. Aflati A⋃(B⋂C) *

2 points

A⋃(B⋂C) = {9, 6, 8, 3}

A⋃(B⋂C) = {9, 6, 8, 3, 5}

A⋃(B⋂C) ={9, 6, 8, 5}

A⋃(B⋂C) = {6,8,3}

A⋃(B⋂C)= {8}

5. Fie multimile A = {2, 4, 5, 8, 9}, B={1, 2, 4, 6, 7}, C={1, 5, 7, 10} Stabiliti care sunt propozitii adevarate *

2 points

A\(B⋂C) = {2, 4, 5, 8, 9}

C\(A⋂B) = {1, 5, 7, 10}

A\(B⋃C) = {8, 9}

C\(B\A) = {5, 7, 8}

B\(A⋂C) = {1, 2, 4, 6}

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