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HomeXAT PYQsXAT 2023 Question PaperConsider $$a_{n+1} =\frac{1}{1+\frac{1}{a_{n}}}$$ for $…
XAT 2023Quantitative AbilityProgressions and SeriesMEDIUM+1 / −0.25

Consider an+1=11+1ana_{n+1} =\frac{1}{1+\frac{1}{a_{n}}}an+1​=1+an​1​1​ for n=1,2,.....,2008,2009n = 1,2, ....., 2008, 2009n=1,2,.....,2008,2009 where a1=1a_{1} = 1a1​=1. Find the value of a1a2+a2a3+a3a4+...+a2008a2009a_{1}a_{2} + a_{2}a_{3} + a_{3}a_{4} + ... + a_{2008}a_{2009}a1​a2​+a2​a3​+a3​a4​+...+a2008​a2009​.

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