
國中數學二下1-1
Authored by 康軒 國中
Education
8th Grade
Used 10+ times

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10 questions
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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_
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_
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_
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
等差數列-8 , -5 , -2 , 1 , 4,則其公差為何?_x000B_
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_
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_
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_
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