MULTIMI II

Elementele mulțimii A ={x $\in$ N| 3 $<$  2x $-$  5 $\le$  9 } sunt:

•  {2, 3, 4}; 

•  {2, 3, 4, 5, 6}; 
  

•  {4, 5, 6, 7}; 

•  {5, 6, 7}.

Cardinalul mulțimii M={x|x  $\in N$ , x = 4n   $-$ 10, n $\in N,$  n $<$  20} este: 

• 19

• 18

• 17

• 20

Dacă mulţimea A are 12 elemente, mulţimea B are 28 elemente, iar A $\cup$ B are 15 elemente, atunci cardinalul mulțimii A $\cap$ B este: 

• 18

• 40

• 25

• 22

Cardinalul multimii A={0,1,2,3,4,6} *

• 0

• 6

• 16

• 4

Daca A={0,1,2,3,4,6} si B={2,4,5,6} atunci AUB=...

• {0,1,2,3,4,5,6}

• {2,4,6}

• {0,1,3}

• {5}

Daca A={0,1,2,3,4,6} si B={2,4,5,6} atunci A∩B=...

• {0,1,2,3,4,5,6}

• {2,4,6}

• {0,1,3}

• {5}

Daca A={0,1,2,3,4,6} si B={2,4,5,6} atunci A-B=...

• {0,1,2,3,4,5,6}

• {2,4,6}

• {0,1,3}

• {5}

Daca A={0,1,2,3,4,6} si B={2,4,5,6} atunci B-A=...

• {0,1,2,3,4,5,6}

• {2,4,6}

• {0,1,3}

• {5}

Daca A={x /xєN , x+3≤ 5 } atunci

• A={0,1,2}

• A={0,1,2,3}

• A={1,2}

• A={1,2,3}

Multimea D₁₅ ∩ M₅ =

• {1,3,5,15}

• {5,15}

• {1,3,5,15,20,25,...}

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