Complicated Limit from Analysis

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SUMMARY

The limit in question is defined as \lim_{n\rightarrow\infty} \sqrt[n]{\alpha^n+\beta^n} = \max(\alpha, \beta), where it is established that assuming \alpha \geq \beta simplifies the proof. The key to proving this limit is to multiply and divide by \alpha^n, which allows for the expression to be rewritten and analyzed. This method leads to the conclusion that the limit indeed equals \alpha.

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I need some help showing the following limit. I don't really know where to start, and I was just looking for a quick tip or two to begin the proof. Thanks!

Problem:

\lim_{n\rightarrow\infty} \sqrt[n]{\alpha^n+\beta^n} = max (\alpha,\beta)
 
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1. From symmetry, you can assume that alpha >= beta.
2. Now you need to prove that the limit is alpha.
3. Remember the trick where you multiply and then divide by same factor (Think, what factor should it be?).
 

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