Question: Use the result in Exercise 91 to show that diverges. Exercise 91 Suppose that a 1 , a 2 , a 3 , ,

Use the result in Exercise 91 to show that1 + M8 n=2 1 n ln n


diverges.



Exercise 91


Suppose that a1, a2, a3,· · ·, an are positive numbers satisfying the following conditions:


i) a1 ≥ a2 ≥ a3 ≥ · · ·;


ii) the series a2 + a4 + a8 + a16 + · · · diverges. Show that the seriesimage


diverges.

1 + M8 n=2 1 n ln n

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