# Revision history of "1998 IMO Shortlist Problems/A2"

Diff selection: Mark the radio boxes of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.

• (cur | prev) 21:03, 30 December 2007‎ ‎ . . (1,672 bytes) (+1,672). . (New page: == Problem == (''Australia'') Let $r_1, r_2, \dotsc, r_n$ be real numbers greater than or equal to 1. Prove that <cmath> \frac{1}{r_1 + 1} + \frac{1}{r_2 + 1} + \dotsb + \frac...)