Convergence of n^(1/n) Sequence: Proving Convergence to 1

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SUMMARY

The sequence defined by x_n = n^(1/n) converges to 1 as n approaches infinity. The proof involves demonstrating that for every ε > 0, there exists an N such that for all m > N, the inequality |m^(1/m) - 1| < ε holds true. A suggested approach to select N includes considering the relationship N < (ε + 1)^(N-1) < (ε + 1)^N, which provides a pathway to establish the convergence rigorously.

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Homework Statement


Let [tex]x_n=n^{\frac{1}{n}}[/tex] be a sequence. Does it converge, and if so to what value?

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The Attempt at a Solution


Clearly it will converge to 1, so that's what we want to prove.
[tex]\forall \epsilon>0\exists N \textnormal{s.t.} m>N \rightarrow |m^{\frac{1}{m}}-1| < \epsilon.[/tex]

...And then I am stuck... any hints on how to select N?
 
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You could try and find a weaker case for selecting N. For example, If [tex]\epsilon[/tex], N>0

[tex]N < (\epsilon + 1)^{N-1} < (\epsilon + 1)^{N}[/tex]. Can you see where I'm going with this?
 

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