test matematica progresii

test matematica progresii

1st Grade

10 Qs

quiz-placeholder

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test matematica progresii

test matematica progresii

Assessment

Quiz

Mathematics

1st Grade

Easy

Created by

Iulia Bocioaca

Used 3+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Al nouălea termen al șirului 2, 5, 8, …. este

30

27

40

26

Answer explanation

Media Image

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt


Dacă numerele 5, x şi 180 sunt termeni consecutivi
ai unei progresii geometrice cu termeni pozitivi,, atunci x este...

30

27

40

55

Answer explanation

Media Image

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Se consideră o progresie aritmetică cu a1=2 și a20=98. Calculați a1+a2+…+a20

1000

50

100

200

Answer explanation

Media Image

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Aflați al 5-lea termen al unei progresii aritmetice dacă a2=32,a6=24.

26

20

32

21

Answer explanation

Media Image

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Primii cinci termeni ai progresiei geometrice cu primul termen b1=−1 și rația q=2

1,2,4,8,16

−1   −2   −4   −8   −16  

2,4,6,8,10

1,2,3,4,5

Answer explanation

Media Image

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Să se determine primul termen al progresiei geometrice (bn) știind că b7=16 și q=2.

1/4

1/3

1

18

Answer explanation

Media Image

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Să se calculeze suma S=1+5+9+...+2013

S=252 · 2014

S=2013·2013

S=2013·2013

S=2013·2014

Answer explanation

Media Image

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