laso7nKellisa laso7nKellisa
  • 19-11-2016
  • Mathematics
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the sum of the series 20c0 - 20c1 + 20c2 - 20c3+........+20c10 is : ____

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nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 22-11-2016
20C0 - 20C1 + 20C2 - 20C3 + . . . + 20C10 = 1 - 20 + 190 - 1,140 + 4,845 - 15,504 + 38,760 - 77,520 + 125,970 - 167,960 + 184,756 = 92,378
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