Aritmetinė progresija

Aritmetinė progresija

12th Grade

13 Qs

quiz-placeholder

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Aritmetinė progresija

Aritmetinė progresija

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Medium

Created by

Edita Balinskiene

Used 29+ times

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Duota, kad aritmetinės progresijos a10=8. Apskaičiuokite

a8+a9+a10+a11+a12.

80

50

40

8

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Apskaičiuokite

45+51+57+...+153

1800

1881

1880

1882

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Kiekvieną gimtadienį Justė gauna tiek gėlių, kiek jai sukanka metų. Tas gėles Justės mama išdžiovina ir palieka atminimui. Dabar Justė turi 120 gėlių. Kiek Justei metų?

13

16

14

15

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Raskite skaičių x, tenkinantį lygybę: 1 + 3 + 5 +...+ (2x-1) = 81

9

8

1

5

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Aritmetinė progresija turi 6 narius, jų suma lygi 297. Paskutinysis narys lygus 67. Kam lygus šios progresijos skirtumas .

3

7

14

30

32

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jei  a4+a6=3a5a_4+a_6=3a_5  , tai  a15a10\frac{a_{15}}{a_{10}}   lygus

2

1/2

18/13

5

7.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Kurios iš pateiktų sekų yra aritmetinė progresija?

4,7; -4,3; 3,9; -3,5;....

7/2; 7/5; 7/8; 7/11;.....

2/7; 5/7;8/7;11/7;...

-4,7;-4,3;-3,9;-3,5;...

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