ลำดับเรขา5/6

ลำดับเรขา5/6

11th Grade

15 Qs

quiz-placeholder

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ลำดับเรขา5/6

ลำดับเรขา5/6

Assessment

Quiz

Mathematics

11th Grade

Hard

Created by

สายฝน ศรี

Used 5+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

ข้อใด เป็น ลำดับเลขคณิต

2 , 4 , 6 , 8 , ...

2 , 4 , 8 , 16 , ...

2 , 4 , 7 , 11 , ...

2 , 4 , 8 , 14 , ...

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

ข้อใดเป็นลำดับเรขาคณิต

0.1 , 0.2 , 0.3 ,...

2 , 4 , 6 , ...

32,12,12,...\frac{3}{2},\frac{1}{2},-\frac{1}{2},...

43,46,412,...\frac{4}{3},\frac{4}{6},\frac{4}{12},...

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

อัตราส่วนร่วมของลำดับเรขาคณิตข้อใดเท่ากับ 2

2,4,6,...

24,12,6,...

18,14,12,..\frac{1}{8},-\frac{1}{4},\frac{1}{2},..

14,12,1,...\frac{1}{4},\frac{1}{2},1,...

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

ลำดับในข้อใดเป็นลำดับเรขาคณิตที่มีอัตราส่วนร่วมเท่ากับ 3

2, 2, 2, 2, 2

127,19,13,...\frac{1}{27},\frac{1}{9},\frac{1}{3},...

-1, 3, -9, 27, - 81

27,9,3,...27,9,3,...

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 18,6,2,...18,-6,2,...  มีอัตราส่วนร่วมเท่ากับข้อใด

 13\frac{1}{3}  

 13-\frac{1}{3}  

3

-3

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

กำหนดลำดับเรขาคณิต 2, 6, 18, 54, … ข้อใดถูกต้อง

a6=486a_6=486

a7=1459a_7=1459

a8=4375a_8=4375

a9=13123a_9=13123

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2, 8, 32, 128, ... มี r เท่ากับเท่าใด?

2+3

4+1

5-1

2+1

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