Art of Problem Solving
During AMC 10A/12A testing, the AoPS Wiki is in read-only mode and no edits can be made.

2001 USAMO Problems/Problem 3: Revision history

Diff selection: Mark the radio buttons 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.

9 April 2023

1 July 2015

7 July 2014

4 July 2013

17 September 2012

31 May 2011

8 February 2011

21 December 2008

  • curprev 01:3501:35, 21 December 2008 Minsoens talk contribs 312 bytes +312 New page: == Problem == Let <math>a, b, c \geq 0</math> and satisfy <center><math>a^2 + b^2 + c^2 + abc = 4.</math></center> Show that <center><math>ab + bc + ca - abc \leq 2.</math></center> == So...