November 28, 2008 by compactorange
13. [PEN A14 A71]
A14. Let be an integer. Show that does not divide .
A71. Determine all integers such that is an integer.
Here is the official solution file: pen13.pdf
You can also discuss the problems: A14 & A71
Posted in PEN Solutions Archive | 1 Comment
very clear thank to the author!
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