國中數學二下1-3
Authored by 康軒 國中
Education
8th Grade
Used 14+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
等比數列 ,2,8,32,128，則其公比為何?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有一等比數列，公比為-4，若將此等比數列各項同乘以 ，則新數列的公比為多少?
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_
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若 三數成等比數列，則 的值可能為何?
22
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_
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_
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_
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