04-24-2014, 03:03 AM
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#2
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Anime Avatars ( ◜◡＾)っ✂╰⋃╯
   
Join Date: Mar 2007
Location: Squat Rack
Age: 34
Posts: 10,837
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Re: [Math] Summation Help
Use length of the series (upper limit - lower limit + 1) over 2 as your multiplier. Formula you were given only applies when k = 1 and should've been rewritten if other questions have other lower limit values.
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Last edited by One Winged Angel; 04-24-2014 at 03:11 AM..
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