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Арифметик прогресс дараалал

Authored by NorovlinSkhool PC5

Mathematics

9th Grade

Used 1+ times

Арифметик прогресс дараалал
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

11. Арифметик прогрессийн 6 дахь гишүүн a6a_6a6​ ол. Хэрэв a1=4a_1 = 4a1​=4, d=3d = 3d=3 бол:

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

12. Арифметик прогрессийн ялгаа (d) хэд вэ? a1=10a_1 = 10a1​=10, a4=22a_4 = 22a4​=22

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3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

13. Хэрэв a1=1a_1 = 1a1​=1, d=2d = 2d=2, n=10n = 10n=10 бол a10a_{10}a10​ хэд вэ?

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

14. a1=5a_1 = 5a1​=5, an=45a_n = 45an​=45, d=4d = 4d=4 үед n хэд вэ?

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5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

15. Арифметик прогрессийн нийлбэр Sn=55S_n = 55Sn​=55, a1=1a_1 = 1a1​=1, an=10a_n = 10an​=10 үед n хэд вэ?

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

16. Арифметик прогрессийн нийлбэрийг хэрхэн тооцдог вэ?

Sn=a1+an2S_n = \frac{a_1 + a_n}{2}Sn​=2a1​+an​​

Sn=n⋅anS_n = n \cdot a_nSn​=n⋅an​

Sn​=2n(a1​+an​)​

Sn​=a1​+(n−1)d

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

17. Арифметик прогрессийн 7 дахь гишүүн хэд вэ? a1=2a_1 = 2a1​=2, d=3d = 3d=3

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