
Progresii aritmetice 2 - științe sociale
Authored by Monica Petre
Mathematics
9th Grade - University
Used 6+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Să se determine al șaptelea termen al șirului aflat în progresie aritmetică 1, 7, 13,...
30
37
39
31
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se consideră progresia aritmetică în care și . Să se calculeze .
-1
1
0
2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Să se determine numărul real x știind că șirul 1, 2x+1, 9, 13, ... este progresie aritmetică.
3
2
1
-2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Să se calculeze suma primilor 10 termeni ai progresiei aritmetice an știind că a1=1 și a3=5.
100
99
101
98
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se consideră progresia aritmetică an în care a1=7 și a7=37. Să se calculeze suma primilor zece termeni ai progresiei.
295
288
302
296
6.
OPEN ENDED QUESTION
20 sec • Ungraded
Veti primi 2 puncte pentru a va scrie numele si prenumele
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