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Another Square Sequence (Posted on 2003-12-23) Difficulty: 4 of 5
If you subtract the sum of the first x numbers, squared, from the sum of the next x numbers, squared, (for example, 6 + 5 + 4 - 3 - 2 - 1); you will get (x)(2x+1) and also x(x+1) minus x^4. Prove why this works.

See The Solution Submitted by Gamer    
Rating: 2.3333 (3 votes)

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  Subject Author Date
Some ThoughtsPuzzle Thoughts K Sengupta2023-02-17 05:47:17
re: Proof by Inductionsumit2004-06-14 08:23:15
solutionsumit2004-06-14 08:20:05
Solutionanother solutionluminita2003-12-28 14:56:43
Proof by InductionLarry Settle2003-12-27 13:53:11
SolutionNo Subjectzaphod2003-12-24 01:51:43
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