Арифметик прогресс дараалал

Арифметик прогресс дараалал

9th Grade

10 Qs

quiz-placeholder

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Арифметик прогресс дараалал

Арифметик прогресс дараалал

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

NorovlinSkhool PC5

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Арифметик прогрессийн томъёо аль нь вэ?

an=a1+(n−1)da_n = a_1 + (n-1)dan​=a1​+(n−1)d ⭐

an=a1⋅rn−1a_n = a_1 \cdot r^{n-1}an​=a1​⋅rn−1

Sn=a11−rS_n = \frac{a_1}{1 - r}Sn​=1−ra1​​

Sn​=2n(a1​+an​)​

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2. a1=3a_1 = 3a1​=3, d=5d = 5d=5 үед 4 дэх гишүүн хэд вэ?

8

13

18

23

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3. Арифметик прогрессийн нийлбэрийн томъёо аль нь вэ?

Sn=a11−rS_n = \frac{a_1}{1 - r}Sn​=1−ra1​​

Sn=n(a1+an)2S_n = \frac{n(a_1 + a_n)}{2}Sn​=2n(a1​+an​)​

Sn​=a1​+(n−1)d

Sn=a1⋅rn−1S_n = a_1 \cdot r^{n-1}Sn​=a1​⋅rn−1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4. a1=2a_1 = 2a1​=2, d=4d = 4d=4 үед эхний 5 гишүүний нийлбэр хэд вэ?

20

30

40

50

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5. Аль нь арифметик прогресс биш вэ?

2, 4, 6, 8, 10

5, 10, 15, 20, 25

3, 6, 12, 24, 48

7, 14, 21, 28, 35

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6. a5=20a_5 = 20a5​=20, d=4d = 4d=4 бол a1a_1a1​ хэд вэ?

0

4

8

4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

7. Арифметик прогрессийн ялгаа (d) яаж олдог вэ?

an−a1a_{n} - a_1an​−a1​

an+1−ana_{n+1} - a_nan+1​−an​

a1⋅ana_1 \cdot a_na1​⋅an​

Snn\frac{S_n}{n}nSn​​

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