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高二愛_等差等比數列

Authored by hiofan Wong

Mathematics

11th Grade

Used 2+ times

高二愛_等差等比數列
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12 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

已知數列的前4項,則以下哪一項是等比數列?

2,3,4,5,…

1,4,9,16,…

2,4,6,8,…

-2,4,-8,16,…

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

已知數列的前4項,則以下哪一個是等差數列?

27,9,3,1,…

8,4,2,0,…

10,8,6,4,…

16,-4,1,4

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

數列1,1,1,1,…是( )

等差數列

等比數列

既是等差數列也是等比數列

以上皆非

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

已知等比數列的a1=2和q=3,則該數列的第4項是( )

11

14

54

162

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

等比數列的a1=4和q=2,則該數列的前5項和是( )

121

-121

92

-92

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

等差數列的首項為5,公差為-2,則前10項之和為( )

-80

80

40

-40

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

數列:-9,-5,-1,3,…的第10項為( )

23

27

31

35

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