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# In the sequence a1, a2, a3, …, an,an=an−1+an−2. If a1=1 and a2=1, whic

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Math Expert
Joined: 02 Sep 2009
Posts: 47206
In the sequence a1, a2, a3, …, an,an=an−1+an−2. If a1=1 and a2=1, whic  [#permalink]

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06 Apr 2018, 05:11
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85% (00:52) correct 15% (00:18) wrong based on 33 sessions

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In the sequence $$a_1$$, $$a_2$$, $$a_3$$, …, $$a_n$$, $$a_n=a_{n−1}+a_{n−2}$$. If $$a_1=1$$ and $$a_2=1$$, which of the following correctly expresses the first 5 terms of the sequence?

A. 1, 1, 2, 3, 4
B. 1, 1, 2, 3, 5
C. 1, 1, 2, 3, 6
D. 1, 1, 2, 4, 8
E. 1, 2, 3, 4, 5

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Math Expert
Joined: 02 Sep 2009
Posts: 47206
Re: In the sequence a1, a2, a3, …, an,an=an−1+an−2. If a1=1 and a2=1, whic  [#permalink]

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06 Apr 2018, 05:14
Bunuel wrote:
In the sequence $$a_1$$, $$a_2$$, $$a_3$$, …, $$a_n$$, $$a_n=a_{n−1}+a_{n−2}$$. If $$a_1=1$$ and $$a_2=1$$, which of the following correctly expresses the first 5 terms of the sequence?

A. 1, 1, 2, 3, 4
B. 1, 1, 2, 3, 5
C. 1, 1, 2, 3, 6
D. 1, 1, 2, 4, 8
E. 1, 2, 3, 4, 5

_________________
Re: In the sequence a1, a2, a3, …, an,an=an−1+an−2. If a1=1 and a2=1, whic &nbs [#permalink] 06 Apr 2018, 05:14
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