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#1 Re: Help Me ! » Pattern Problem » 2009-05-15 04:43:59

hi

yeah I have, but thats no help for this particular question because you can't find solutions..

the method i found on the website i quoted seemed easy to apply, any ideas how it acn be proven? I think that isn't supposed to be too hard, but I'm clueless...

#2 Help Me ! » Pattern Problem » 2009-05-15 03:11:27

Aquafina
Replies: 6

Hi I need help generalising the method required for question 7 in the following link:

http://www.mathpropress.com/Konhauser/Konhauser1995.html

any help will be appreciated big_smile

They have a general case in something similar,except the rows are numbered from the top going down:

http://www.cut-the-knot.org/arithmetic/NimSum.shtml

except i dont know how to prove it..

#3 Help Me ! » Proof by Induction? » 2009-05-15 02:31:18

Aquafina
Replies: 5

Hi I want to show that for x>3

(x^5 - 1)/(x-1) ≠ y^2

where y is any integer

basically the expression is not a perfect square

I've tried proof by induction but can't seem to get anywhere

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