AoPS Wiki talk:Problem of the Day/July 20, 2011
Problem
AoPSWiki:Problem of the Day/July 20, 2011
Solution
We insert into the equation and find
that way:
Note that this is equivalent to .
AoPSWiki:Problem of the Day/July 20, 2011
We insert into the equation and find
that way:
Note that this is equivalent to .