Арифметик прогресс дараалал
Authored by NorovlinSkhool PC5
Mathematics
9th Grade
Used 1+ times
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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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