Question: . The Ratio Test involves a sequence {a} such that ak #0 for all k and |ak+1| l = lim k-700 |ak| Show that

. The Ratio Test involves a sequence {a} such that ak #0 for all k and |ak+1| l = lim k-700 |ak| Show that The Ratio Test fails when = 1. That is, give examples of: a convergent series a such that = 1; and a divergent series ak such that l = 1.

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