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NGS-PA 11C1 week5 quiz

Authored by Met Borovy

Mathematics

11th Grade

Used 1+ times

NGS-PA 11C1 week5 quiz
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12 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

ក្នុងចំណោមស្វ៊ីតនៃចំនួនពិតខាងក្រោម តើស្វ៊ីតណាជាស្វ៊ីតនព្វន្ដ?

0,3,4,9,10,...0,3,4,9,10,...

1,5,8,11,16,18,...1,5,8,11,16,18,...

1,4,6,5,2,8,1,...1,4,6,5,2,8,-1,...

2,5,8,11,14,17,...2,5,8,11,14,17,...

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 2,3,4,5,6,...2,3,4,5,6,...  មានតួទី n គឺ

 an=n1a_n=n-1 

 an=na_n=n 

 an=n+1a_n=n+1 

 an=n2a_n=n-2 

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

តួទី n នៃស៊្វីតនព្វន្ដដែលមានតួ c2=17,c3=30c_2=17,c_3=30  គឺ

 cn=13n9c_n=13n-9 

 cn=13n+9c_n=13n+9 

 cn=13n17c_n=13n-17 

 cn=13n+17c_n=13n+17 

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

រូបមន្ដផលបូកតួទី n នៃស៊្វីតនព្វន្ដគឺ

 Sn=nan2a1S_n=\frac{na_n}{2a_1} 

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

 Sn=n(ana1)2S_n=\frac{n\left(a_n-a_1\right)}{2} 

 Sn=an+a12nS_n=\frac{a_n+a_1}{2n} 

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

ក្នុងចំណោមស្វ៊ីតនៃចំនួនពិតខាងក្រោម តើស្វ៊ីតណាជាស្វ៊ីតធរណីមាត្រ?

 1,2,4,8,...-1,2,4,-8,... 

 1,2,4,8,...1,2,4,-8,... 

 1,2,4,8,...1,2,4,8,... 

 1,2,3,4,...1,2,3,4,... 

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

គេមានស្វ៊ីតធរណីមាត្រ (un):2,8,32,128,...\left(u_n\right):2,-8,32,-128,... ។ ផលធៀបរួមនៃស្វ៊ីតគឺ

 q=2q=-2 

 q=2q=2 

 q=4q=-4 

 q=4q=4 

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

គេឲ្យ 16,b,78416,b,784 ជាបីតួបន្តគ្នានៃស្វ៊ីតធរណីមាត្រ នោះគេបាន b=b=  

 b=49b=49 

 b=98b=98 

 b=112b=112 

 b=224b=224 

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