Difference between revisions of "User talk:5849206328x"
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| − | + | (3/5) Determine all ordered pairs <math>(x,y)</math> of nonnegative integers such that <cmath>\sum_{i=1}^{x}i! = 3^y</cmath> | |
Revision as of 17:20, 13 April 2009
(3/5) Determine all ordered pairs 
of nonnegative integers such that ![\[\sum_{i=1}^{x}i! = 3^y\]](http://latex.artofproblemsolving.com/5/b/3/5b34ddfb0615aa89a9b36926ac1861253647dd18.png)
