помогите решить 1 пример по математике(ряды)

Discussion in 'Болталка' started by -Straniks-, 21 Dec 2010.

  1. -Straniks-

    -Straniks- Member

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    http://s016.radikal.ru/i336/1012/e5/36c6c00763ef.jpg
    буду благодарен.нужно срочно
     
    #1 -Straniks-, 21 Dec 2010
  2. immortalist

    immortalist Member

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    Задание то какое? :)
     
    #2 immortalist, 21 Dec 2010
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