quizz grigorescu maria

quizz grigorescu maria

9th Grade

10 Qs

quiz-placeholder

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PROGRESII ARITMETICE

PROGRESII ARITMETICE

9th Grade

10 Qs

quizz grigorescu maria

quizz grigorescu maria

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Maria Grigorescu

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un sir de numere real cu primul termen nenul, in care orice termen incepand cu al doilea se obtine din termenul precedent inmultit cu acealsi nr fixat nenul se numeste ..... .

progresie aritmetica

progresie geometrica

ecuatie

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se considera o progresie aritmetica cu ratia 4 si a6 = -10. Calculati a8

-2

2

-30

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se considera o progresie aritmetica cu a1 = 2 si a20 = 98

Calculati a1 + a2 + ... + a20

20

500

1000

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se considera o progresie aritmetica cu ratia 3 si a1 = 2. Calculati a6

17

  • -17

7

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se considera o progresie aritmetica cu a2=7 si a3= 1

Determinati ratia acestei progresii

-6

8

6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sa se determine primul termen al progresiei geometrice (bn) stiind ca b7 = 16 si q = 2 .

2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Progresia geometrica este un sir de

numere

litere

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