CMC mock test (16)(Find Sum)

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Labib
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CMC mock test (16)(Find Sum)

Unread post by Labib » Sun Dec 18, 2011 5:31 pm

Let,
$a_1=a_2=1,a_{n+2}=a_{n+1}+a_n;n\geq 1$.

$\sum^{2011}_{x=1}\left \{\sum^{\infty}_{n=1}\frac {a_n}{2011^{n+1}}\right \}=?$
Last edited by Labib on Sun Dec 18, 2011 7:21 pm, edited 2 times in total.
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Labib
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Re: CMC mock test (16)(Find Sum)

Unread post by Labib » Sun Dec 18, 2011 5:32 pm

I didn't understand what $x$ was there for... That's what hte problem stated... :?
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bristy1588
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Re: CMC mock test (16)(Find Sum)

Unread post by bristy1588 » Sun Dec 18, 2011 6:05 pm

U have made a small mistake there labib. Edit it.
Bristy Sikder

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Labib
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Re: CMC mock test (16)(Find Sum)

Unread post by Labib » Sun Dec 18, 2011 7:22 pm

Done editing...
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