Difference between revisions of "Mock AIME 2 2010 Problems/Problem 7"
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| − | + | As the functions map 1,2,3,4,5 to itself,, the condition reduces to f(x)=x, which counts as 1 function. | |
Revision as of 22:44, 5 March 2020
As the functions map 1,2,3,4,5 to itself,, the condition reduces to f(x)=x, which counts as 1 function.
