Inecuații în mulțimea numerelor reale

Quiz
•
Mathematics
•
8th Grade
•
Hard
LAZĂR ADRIANA DORINA
Used 7+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Scrisă
sub formă de interval mulțimea numerelor
reale
x care satisfac relația
x < 5 este egală
cu ... .
(-∞; 5)
(5;+∞)
(-5; 5)
(-∞; 5]
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Scrisă sub formă de interval mulțimea numerelor reale x care satisfac relația
x ≥ 5 este egală cu ... .
[5;+∞)
(5;+∞)
(-5;5)
[-5;5]
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Scrisă sub formă de interval mulțimea
A = {x∈ℝ/0 ≤ x} este egală cu ... .
(0;+∞)
[0;+∞)
(-∞;0)
(-∞;0]
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Scrisă sub formă de interval mulțimea
A = {x∈ℝ/-6 ≤ 2x < 8} este egală cu ... .
(-6;8)
[-6;8)
(-3;4)
[-3;4)
5.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Soluția în ℝ a inecuației
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Soluția în ℝ a inecuației
3
-3
7.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Soluția în ℝ a inecuației
8.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Mulțimea numerelor reale pentru care dublul lor mărit cu 2 este cel mult egal cu triplul lor este:
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