test de matematică Progresii aritmetice

Quiz
•
Mathematics
•
9th Grade
•
Hard
Daniela Milea
Used 59+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determinați termenii și ai progresiei aritmetice dacă și
și
și
și
și
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determinați termenul de rang 21 al progresiei aritmetice
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determinați termenii ai progresiei aritmetice .
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Determinați și r dacă și
și
și
și
și
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determinați primul termen al unei progresii aritmetice dacă suma primilor n termeni este
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Să se determine x, număr real dacă numerele 3 , x+1 și 45 sunt termeni consecutivi de progresie aritmetică.
x=23
x=46
x=-23
x=0
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Să se determine x, număr real dacă numerele (x-1), (x+5) ,(2x+8) sunt în progresie aritmetică.
x=2
x=3
x=5
x=-2
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