April 17th, 2013, 02:22 PM  #1 
Member Joined: Oct 2012 Posts: 39 Thanks: 0  Estimate the value of this sum...
[attachment=0:2nevj4vn]Logic1.png[/attachment:2nevj4vn] Where do I start on this one? 
April 17th, 2013, 02:33 PM  #2 
Member Joined: Oct 2012 Posts: 39 Thanks: 0  Re: Estimate the value of this sum...
Would I find the integral? I did that and my answer was about 15 off, but a pretty close approximation.

April 18th, 2013, 02:25 PM  #3 
Math Team Joined: Nov 2010 From: Greece, Thessaloniki Posts: 1,989 Thanks: 133 Math Focus: pre pre pre pre pre pre pre pre pre pre pre pre calculus  Re: Estimate the value of this sum... [color=#000000]Here is a better approximation using and for a=1000, b=8000, , N=8000999=7001 you get Mathematica gives the result , so the error is around 1 (no too big I guess). .[/color] 

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