Progresii aritmetice, geometrice
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Stela Negrea
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7 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Să se determine al patrulea termen al unei progresii geometrice ştiind că raţia este egală cu -2 şi primul termen este 8
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Să se determine numărul real x,ştiind că 5-x, x+7 si 3x+11 sunt termenii consecutivi ai unei progresii geometrice
3.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Să se calculeze primul termen al unei progresii geometrice știind ca rația este egală cu 3 și suma primilor patru termeni ai progresiei este egală cu 40
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Să se găsească primul termen şi raţia unei progresii geometrice (bn), dacă
b5 – b1 = 15 şi b4 – b2 = 6
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Să se determine numărul real x, ştiind că
x-3, 4, x+3
sunt termenii consecutivi ai unei progresii aritmetice
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Să se determine primul termen şi raţia unei progresii aritmetice daca
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