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 December 19th, 2012, 12:07 PM #1 Newbie   Joined: Dec 2012 Posts: 3 Thanks: 0 Summation of series. Use the formulae for r^3, r^2, and r, where appropriate to find 2n *sigma notation* r^2(1+r) r=1 I'm struggling with this one; I have already done two questions on this, but I can't seem to do this one, and I can't upload pictures of working out because the site says the file is too big.
December 19th, 2012, 12:44 PM   #2
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Re: Summation of series.

Quote:
 Originally Posted by E=mc^2 Use the formulae for r^3, r^2, and r, where appropriate to find 2n *sigma notation* r^2(1+r) r=1 I'm struggling with this one; I have already done two questions on this, but I can't seem to do this one, and I can't upload pictures of working out because the site says the file is too big.
If you know the the formulas for r^3 and r^2 series, just add them using an upper limit of 2n.

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