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2014 IMS
8
8
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2014 IMS
Problems
(1)
Is it convergent?
Source: IMS 2014 - Day2 - Problem8
10/4/2014
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\sum_{n=1}^{+\infty}\frac{\cos n}{n}(1 + \frac{1}{\sqrt{2}} + \cdots + \frac{1}{\sqrt{n}})
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convergent? why?
trigonometry
real analysis
real analysis unsolved