
Арифметик прогресс дараалал

Quiz
•
Mathematics
•
9th Grade
•
Hard
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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