allypuckettou69z2 allypuckettou69z2
  • 04-08-2017
  • Mathematics
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what is the sum of the last four terms of the series 97+99+101+...+121

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irspow
irspow irspow
  • 04-08-2017
This is an arithmetic sequence because each term is 2 greater than the previous term.  So the sum of the last four terms are:

121+119+117+115

472
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