
Intervale de numere reale
Authored by Diana Stanciu
Mathematics
8th Grade
Used 70+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Intervalul
este:Interval nemărginit la dreapta și descis la stanga
Interval mărginit
Interval nemărginit la stânga și închis la dreapta
Interval nemărginit la stânga și deschis la dreapta
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Intervalul
esteInterval deschis
Interval închis
Interval nemărginit
Interval încis la stânga și deschis la dreapta
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Propoziția „ 5 ∈ (−5; 5) '' este
Adevărată
Falsă
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mulțimea A = {x∈R / −6 ≤ x ≤ 5} se scrie ca interval...
(− 6; 5)
[− 6; 5)
(− 6; 5]
[− 6; 5]
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mulțimea B = {x∈R / −8 ≤ x < 5} se scrie ca interval...
(− 8; 5)
[− 8; 5)
(− 8; 5]
[− 8; 5]
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Intervalul [ − 7; 6) se scrie ca mulțime de numere reale astfel:
{x ∈ R / −7 ≤ x ≤ 6}
{x ∈ R / −7 < x ≤ 6}
{x ∈ R / −7 ≤ x < 6}
{x ∈ R / −7 < x < 6}
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mulțimea B = {x∈R / −8 ≤ x + 3 < 5} se scrie ca interval...
(− 11; 5)
[− 11; 2)
(− 8; 2]
[− 11; 5]
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