Tuesday, April 2, 2013

Q13/032) Find lim n-> inf (n/(n+2))^n


(n/(n+2))^n
= (1/(1+2/n)^n
= ((1/(1+2/n)^n/2)^2

As (1+1/x) ^x as x -> infinite is  e so /(1+2/n)^n/2 = e so given limit = 1/e^2 

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