期末対策3(37回、38回)

期末対策3(37回、38回)

12th Grade

7 Qs

quiz-placeholder

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期末対策3(37回、38回)

期末対策3(37回、38回)

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Hard

Created by

籾山 たぬ

Used 4+ times

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7 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 次の条件


 a1=1, an+1=3an+8a_1=1,\ a_{n+1}=3a_n+8  

によって定められる数列 {an}\left\{a_n\right\} の一般項は ABn1CA\cdot B^{n-1}-C  である。A,B,Cを求めよ。

2.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 次の条件


 a1=1,  an+1=4an+3a_1=1,\ \ a_{n+1}=4a_n+3  

によって定められる数列 {an}\left\{a_n\right\} の一般項は ABn1CA\cdot B^{n-1}-C  である。A,B,Cを求めよ。

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 2, 6, 12, 20, 30, 422,\ 6,\ 12,\ 20,\ 30,\ 42\cdots  の一般項を求めよ


 n2+nn^2+n  

 n2n+2n^2-n+2  

 n22n+3n^2-2n+3  

 4n24n-2  

4.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 13, 57,9,1113,15,17,1921,23,25,27,2931,1\left|3,\ 5\right|7,9,11\left|13,15,17,19\right|21,23,25,27,29\left|31,\cdots\right|  の第11群の初めの数はいくらか。


5.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 13, 57,9,1113,15,17,1921,23,25,27,2931,1\left|3,\ 5\right|7,9,11\left|13,15,17,19\right|21,23,25,27,29\left|31,\cdots\right|  の第11群の項の総和はいくらか。


6.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 12+22+32++1021^2+2^2+3^2+\cdots+10^2  を求めよ

7.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 数列 \left\{a_n\right\} の初項から第n項までの和 SnS_n  が


 Sn=n3nS_n=n^3-n  で与えられている。このとき, {an}\left\{a_n\right\}  は an=An2Bna_n=An^2-Bn  となる。A,Bを求めよ。