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Unformatted text preview: 1 X i =0 ( i 2 + 2 i + 1) . The i 2 terms mostly cancel, leaving n 2 = n 1 X i =0 (2 i + 1) = 2 n 1 X i =0 i + n. n 2 n 2 = n 1 X i =0 i Substituting back i 1 for i , we get n X i =1 = n 2 + n 2 ....
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This note was uploaded on 12/27/2011 for the course MAP 2302 taught by Professor Bell,d during the Fall '08 term at UNF.
 Fall '08
 BELL,D

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