May 25–May 31, 2010

Problem

Let   f   be a continuous, non-negative function satisfying

Prove that   f(t) ≤ 1+t   for all   t > 0 .

Solution

here

List of solvers

This Challenge was more difficult than we expected. Only two participants solved it :
Congpa You, Peiyush Jain.

Peiyush Jain wins the prize!