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Topic: Analysys with f(f(a_n))
Replies: 4   Last Post: Jun 6, 2013 5:33 AM

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Peter Percival

Posts: 1,296
Registered: 10/25/10
Re: Analysys with f(f(a_n))
Posted: Jun 5, 2013 10:52 AM
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mina_world@hanmail.net wrote:
> Hello teacher~
>
> a_1 = 1
>
> a_(n+1) = f(f(a_n)) (n >= 1)
>
> Find the lim{n->oo} a_n


Doesn't it depend on f?

> -------------------------------------------
> Answer is 4/3.
>
> How do you solve it ?
>
> I need your advice.


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Behind another Elephant
Behind /another/ Elephant who isn't really there....
A.A. Milne



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