2003 OIM Problems/Problem 3
Problem
Pablo was copying the following problem from a blackboard:
When Pablo was going to copy the expression for , they erased the blackboard. The only thing he could remember was that was of the form
where the last term, , had a coefficient +1, and the previous ones had a coefficient +1 or -1. Show that Paul, despite not having the complete statement, can find with certainty the solution to the problem.
~translated into English by Tomas Diaz. ~orders@tomasdiaz.com
Solution
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