國中數學二下1-1

國中數學二下1-1

8th Grade

10 Qs

quiz-placeholder

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國中數學二下1-1

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Assessment

Quiz

Education

8th Grade

Medium

Created by

康軒 國中

Used 10+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知一數列1 , -2 , -2 , 3 , 3 , 3 , -4 , -4 , -4 , -4 , 5 , 5 , a , b , c , d,依某種規律排列而成,求a+b+c+d的值為何?_x000B_
6
7
8
9

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知一數列1×2 , 2×3 , 3×4 , 4×5 , 5×6 , □ , 7×8,依某種規律排列而成,求□的值為何?_x000B_
36
42
49
64

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若一等差數列的公差為d,則將各項值都加上2之後,新數列的變化為何?_x000B_
依然為等差數列,公差為d+2
依然為等差數列,公差為2d
依然為等差數列,公差為d
不是等差數列

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

等差數列-8 , -5 , -2 , 1 , 4,則其公差為何?_x000B_
3
12
13
-3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若一等差數列的首項為35,末項為-145,公差為-4,則此等差數列共有多少項?_x000B_
44
45
46
47

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若一等差數列的公差為4,第5項為13,則首項是多少?_x000B_
-3
1
5
9

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若一等差數列的第2項為120,第26項為0,則其首項為何?_x000B_
-5
5
-125
125

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