Mulțimi
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Vera Miron
Used 76+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fie mulțimile A={-3;-2;-1;0;1;2} și B={-2;-1;0;1;2; 3; 4}, atunci A∩B=
{-3;-2;-1;0;1;2; 3;4}
{-2;-1;0;1;2}
{-3}
{3;4}
{-2;-1;0;1;2; 3;4}
2.
FILL IN THE BLANK QUESTION
1 min • 2 pts
Mulțimea care nu are niciun element se numește
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mulțimea literelor din cuvântul abecedar este:
{a; b;c;e;d;a;r}
{a; b;c;e;d;r}
{a; b;c;e;r}
{a; b;c;d;r}
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Scrisă prin enumerarea elementelor sale mulțimea
A={x∈N/ x≤3 }este:
{0, 1, 2, 3}
{1, 2, 3}
{1, 2}
{0, 1, 2)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cardinalul mulțimii: A={a; b; c; d} este:
1
0
2
4
3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se dau mulțimile:A={1, 2, 3, 5} și
B={2, 3, 4, 6, 7}.
A∪B este:
{1, 2, 3, 5, 4, 6, 7}
{2, 3}
{1, 2, 2, 3, 3, 4, 5, 6, 7}
{1,5}
{4,6,7}
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fie milțimile: A={1, 2, 3, 5} și B={0, 1, 2, 4, 6}.
A∩B este:
ϕ
{1,2}
{1, 3, 5}
{0, 1, 2, 3, 4, 5, 6}
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