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Quiz 5

Authored by Sugarmaa Altankhuyag

Mathematics

12th Grade

Used 9+ times

Quiz 5
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6 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 an+1=3an+5 a_{n+1}=3a_n+5\   
дарааллын  a1=2a_1=-2 бол  a5a_5 -ыг ол  

11

21

29

38

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 a40+a48=38, a26=11a_{40}+a_{48}=38,\ a_{26}=11  
бол  a_{35}=?  

14

15

16

17

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 7+13+19+...+(6n+1)=4807+13+19+...+(6n+1)=480  
бол  nn  утгыг олно уу.

10

11

12

13

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 b6b19=25b_6\cdot b_{19}=25  
бол  b11b14b_{11}\cdot b_{14}  утгыг олно уу.

5

25

75

125

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 2x1, 3x+1, 12x+4\sqrt{2x-1},\ \sqrt{3x+1},\ \sqrt{12x+4}  
нь геометр прогрессын дараалласан 3 гишүүн бол голын гишүүнийг ол.

1

2

4

8

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 15+125+1125+...+15n\frac{1}{5}+\frac{1}{25}+\frac{1}{125}+...+\frac{1}{5^n}  нийлбэрийг ол.

 14\frac{1}{4}  

 15\frac{1}{5}  

1

2

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