
4-1等差數列測驗一

Quiz
•
Mathematics
•
10th Grade
•
Medium
許逸菁 許逸菁
Used 10+ times
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13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若數列 ,則第5項為?
17
21
13
25
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若一等差數列首項為4,公差為2,則第10項為?
18
20
22
24
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
已知一等差數列 中, ,試求:公差?
-3
3
-5
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
等差數列7, 3,-1 , , …的公差為
2
4
-2
-4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若-1,a ,b ,c , 19為一等差數列,則b=?
4
9
13
-1
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
設一等差數列前n項的和為 ,試求此數列的第4項。
3
5
8
2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
在10與-26之間插入8項,使其成等差數列,試求:公差
-4
2
-3
5
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