
PROGRESII
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Nicoleta Tudorache
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O progresie geometrica este
un numar real.
un sir de numere alese la intamplare.
un sir de numere in care fiecare termen, incepand cu al doilea, se obtine inmultind termenul precedent cu o ratie.
un sir de numere in care fiecare termen, incepand cu al doilea, se obtine adunand termenul precedent cu o ratie.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O progresie aritmetica este
un sir de numere in care fiecare termen, incepand cu al doilea, se obtine inmultind termenul precedent cu o ratie.
un numar intreg.
o multime de numere alese la intamplare.
un sir de numere in care fiecare termen, incepand cu al doilea, se obtine adunand termenul precedent cu o ratie.
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Determinati termenul de rang 12 al sirului 2, 8, 14, 20, ...
42
38
34
32
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calculati suma primilor 5 termeni ai progresiei aritmetice cu primul termen egal cu 1 si ratia 2.
32
25
16
36
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Calculati termenul de rang 9 din progresia geometrica cu ratia 1/3 si primul termen 243.
27
3
1/27
1/3
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calculati al cincilea termen al unei progresii aritmetice stiind ca primul termen al progresiei este 7 si al doilea termen este 9.
15
17
13
21
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Determinati ratia progresiei geometrice in care primul termen este 3 si diferenta dintre al doilea termen si primul este 3.
-1
-2
3
2
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