
Progresii geometrice
Authored by Nicoleta Manea-Marinescu
Mathematics
9th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
1. Al patrulea termen al șirului 4, 12, 36,......... este:
2.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
2. Într-o progresie geometrică al doilea termen este 2 și al patrulea termen este 50. Primul termen și rația progresiei sunt:
3.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
3. Într-o progresie geometrică al patrulea termen este 48 și primul termen este 6. Atunci al cincelea termen este:
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
4. Într-o progresie geometrică primul termen este 7 și al treilea termen este 28. Atunci al doilea termen este:
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
5. Numărul real x pentru care numerele 1, x-4 și 9 sunt termeni consecutivi intr-o progresie geometrică, este:
6.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
6. Suma primilor 6 termeni dintr-o progresie geometrică în care cunoaștem primul termen egal cu 3 și rația egală cu -2, este:
7.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
7. Rația unei progresii geometrice în care primul termen este 3 și diferența dintre al doilea termen și primul termen este 3, este:
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