Greg16777 Greg16777

11-04-2018
Mathematics

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Find the sum of the integers from -2007 through +2009

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Аноним Аноним

11-04-2018

This is an arithmetic sequence with first term -2007 and common difference of 1. and last term = 2009. Total number of terms = 2008 + 2009 = 4017

Sn = (n/2)(a + l)

Sum (4017/2) ( -2007 + 2009) = 4017 * 2 / 2 = 4017 Answer

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