Math Is Fun Forum

reconsideryouranswer

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Registered: 2011-05-11

Posts: 171

Sums of series with odd positive denominators

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hammana

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Registered: 2012-03-02

Posts: 48

Re: Sums of series with odd positive denominators

For any positive a and b we have
1/(a-b)+1/(a+b)>2/a
therefore
1/(25-4)+1/(25+4)>2/25 
1/(25-2)+1/(25+2)>2/25