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期末対策2(35回・36回)

Authored by 籾山 たぬ

Mathematics

12th Grade

Used 4+ times

期末対策2(35回・36回)
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6 questions

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1.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

数列 13, 35,57,791\cdot3,\ 3\cdot5,5\cdot7,7\cdot9\cdots の初項から第 nn  項までの和を求めると、 n3(  A n2+BnC    )\frac{n}{3}\left(\ \ A\ n^2+Bn-C\ \ \ \ \right)  となる。A,B,C に入る数を答えよ。 A,B,Cと言う形で答えてください

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 3+4, 32+7, 33+10, 34+133+4,\ 3^2+7,\ 3^3+10,\ 3^4+13  

数列

 3n+3n2+5n32\frac{3^n+3n^2+5n-3}{2}  

 3n+1+3n2+5n32\frac{3^{n+1}+3n^2+5n-3}{2}  

 3n+3n2+5n2\frac{3^n+3n^2+5n}{2}  

 3n+1+3n2+5n2\frac{3^{n+1}+3n^2+5n}{2}  

3.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 S=21+5+25+9+29+13++245+49S=\frac{2}{1+\sqrt{5}}+\frac{2}{\sqrt{5}+\sqrt{9}}+\frac{2}{\sqrt{9}+\sqrt{13}}+\cdots+\frac{2}{\sqrt{45}+\sqrt{49}}  を計算せよ。

4.

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  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 1, 3, 7, 13, 21, 311,\ 3,\ 7,\ 13,\ 21,\ 31\cdots  の一般項を求めよ


 n2+n1n^2+n-1  

 n2n+1n^2-n+1  

 n22n+2n^2-2n+2  

 4n34n-3  

6.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

 24, 68,10,1214,16,18,2022,24,26,28,3032,2\left|4,\ 6\right|8,10,12\left|14,16,18,20\right|22,24,26,28,30\left|32,\cdots\right|  の第12群の初めから3番目の数はいくらか。


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