. Find n such that \frac{a^{n}+b^{n}}{a^{n-1}+b^{n-1}} may be the A.M. – InterviewSolution

1.	. Find n such that \frac{a^{n}+b^{n}}{a^{n-1}+b^{n-1}} may be the A.M. between a and b.
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