Арифметикалық прогрессия

Арифметикалық прогрессия

2nd Grade

7 Qs

quiz-placeholder

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Арифметикалық прогрессия

Арифметикалық прогрессия

Assessment

Quiz

Mathematics

2nd Grade

Medium

Created by

Aian Maksat

Used 4+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 a1=3 ; a2=5;     d=?a_1=3\ ;\ a_2=5;\ \ \ \ \ d=?  

3

4

2

1

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 a1=1;   a9=9;   s9=?a_1=1;\ \ \ a_9=9;\ \ \ s_9=?  a

45

18

46

19

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1; 4; 7; 10; 13; x; ...

15

14

16

17

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

  sn=s_n=  

 ana_n  

 a1+an2×n\frac{a_1+a_n}{2}\times n  

 an+a23×n\frac{a_n+a_2}{3}\times n  

 an+a12\frac{a_n+a_1}{2}  

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 sn=s_n=  

 2a1+(n1)d2×n\frac{2a_1+\left(n-1\right)d}{2}\times n  

 a1+(n1)d2×n\frac{a_1+\left(n-1\right)d}{2}\times n  

 2a1+(n1)d2a_1+\left(n-1\right)d  

дұрыс жауабы жоқ

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

арифметикалық прогрессияны анықта

тақ сандар тізбегі

12; 13; 14; .....\frac{1}{2};\ \frac{1}{3};\ \frac{1}{4};\ .....

-1; 1; 2; 3; ....

5 тің еселіктері

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 a1=4; a2=7; s5=?a_1=4;\ a_2=7;\ s_5=?  

27,5

50

60

22,5