
20250305等差數列與等差級數測驗
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Easy
Yao Jamie
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什麼是等差數列?
各項相乘的數列
相鄰兩項差固定的數列
各項平方的數列
隨機排列的數列
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在等差數列中,這個「固定差」稱為什麼?
首項
末項
公差
項數
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
等差級數是指什麼?
等差數列的各項乘積
等差數列的各項總和
等差數列的各項平方
等差數列的各項倒數
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知一個等差數列的首項為2,公差為1,則此數列的第三項是多少?
3
4
5
6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
等差級數的求和公式中,需要知道哪三項?
首項、末項、公差
首項、末項、項數
公差、項數、末項
首項、公差、平方
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若一個等差數列的首項為1,末項為5,共有5項,則此等差級數的和為多少?
10
15
20
25
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
等差級數 1 + 3 + 5 + 7 + 9,其公差為多少?
1
2
3
4
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