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漸化式②

Authored by tomoyuki takimoto

Mathematics

9th - 12th Grade

Used 2+ times

漸化式②
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10 questions

Show all answers

1.

FILL IN THE BLANKS QUESTION

10 sec • 1 pt

a1=1a_1=1 , an+1=2an+5a_{n+1}=2a_n+5 の第2項から第5項を求めます。

まず、第2項を答えてください。

(a)  

2.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

a1=1a_1=1 , an+1=2an+5a_{n+1}=2a_n+5 の第3項は?

(a)  

3.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

a1=1a_1=1 , an+1=2an+5a_{n+1}=2a_n+5 の第4項は?

(a)  

4.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

a1=1a_1=1 , an+1=2an+5a_{n+1}=2a_n+5 の第5項は?

(a)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

a1=3a_1=3 , an+1=an+2a_{n+1}=a_n+2 の一般項は?

an=2n−1a_n=2^{n-1}

an=2na_n=2^n

an=2n+1a_n=2n+1

an=2na_n=2n

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

a1=5a_1=5 , an+1=an−4a_{n+1}=a_n-4 の一般項は?

an=(−4)n−1a_n=\left(-4\right)^{n-1}

an=5n−1a_n=5^{n-1}

an=5n−9a_n=5n-9

an=−4n+9a_n=-4n+9

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

a1=5a_1=5 , an+1=−3ana_{n+1}=-3a_n の一般項は?

an=5n−8a_n=5n-8

an=−3n+8a_n=-3n+8

an=−3⋅5n−1a_n=-3\cdot5^{n-1}

an=5(−3)n−1a_n=5\left(-3\right)^{n-1}

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