國中數學二下1-3

國中數學二下1-3

8th Grade

10 Qs

quiz-placeholder

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Assessment

Quiz

Education

8th Grade

Medium

Created by

康軒 國中

Used 10+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2
4
6
8

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

-4
-1
1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若一等比數列的公比為r,則將各項的值都乘上2之後,新數列的變化為何?_x000B_
依然為等比數列,公比為r+2
依然為等比數列,公比為2r
依然為等比數列,公比為r
不是等比數列

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

22

3
5
6

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若下列各數列都是等比數列,則何者的公比為正整數?_x000B_
4 , 6 , 9
20 , 30 , 45
4 , 8 , 16 , 32
100 , 150 , 225

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若一個等比數列的首項為2,公比為2,求此數列的第10項為何?_x000B_
256
512
1024
2048

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知5 , x , 25三數成等差數列,且5 , 10 , y三數成等比數列,則x+y=?_x000B_
30
35
40
45

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