
Progresii aritmetice și geometrice, IX
Authored by SANDA BARBU
Mathematics
9th Grade
Used 14+ times

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40 questions
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1.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Care dintre numerele 41; 46; 58; 63
este un element al progresiei aritmetice: 3; 7; 11; 15;
2.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Găsiți rația progresiei aritmetice dată de formula
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Găsiți elementul necunoscut al progresiei geometrice
...; 0,125; -0.25; X; -1; ...
-0,5
0,5
2
-2
4.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
În progresie geometrică Calculați .
5.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Suma elementelor al 14-lea ș ial 5-lea ai unei progresii aritmetice este 25. Calculați suma celor 18 elemente ai acestei progresii.
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Progresia geometrică este dată de condițiile Calculați
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Determinați termenii și ai progresiei aritmetice dacă și
și
și
și
și
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