SOLUTION: Use sigma notation to write the sum -x^5/9 + x^6/10 - x^7/11 + x^8/12.. Start at n=5

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Question 204303: Use sigma notation to write the sum -x^5/9 + x^6/10 - x^7/11 + x^8/12..
Start at n=5
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
,,(8)
E,,,,,,= (-1)^n * (x)^(n/{n+4)})
(n=5)
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Please excuse the commas used only for spacers. Let "E" = summation symbol
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expanding this by letting n=5,,then 6,,then 7,,then 8,,,gives the original series
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