- #1

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Ratio Test

[tex]\lim_{n\rightarrow\infty}|\frac{(-1)^{n+1}(n+1)(n^{2}+25)}{[(n+1)^{2}+25](-1)^{n}n}|[/tex]

[tex]\lim_{n\rightarrow\infty}|\frac{n^{3}+n^{2}+25n+25}{ n^{3}+2n^{2}+26n}|=1[/tex]

Thus, the Ratio Test is inconclusive. So what should my next step be, or other suggestions? Hmm ...

Thanks!