User contributions
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- 11:05, 5 October 2012 (diff | hist) . . (+90) . . m 1981 USAMO Problems
- 11:04, 5 October 2012 (diff | hist) . . (-8) . . m 1981 USAMO (current)
- 11:04, 5 October 2012 (diff | hist) . . (+4) . . m 1977 USAMO (current)
- 11:04, 5 October 2012 (diff | hist) . . (+4) . . m 1978 USAMO (current)
- 11:03, 5 October 2012 (diff | hist) . . (+348) . . N 1980 USAMO Problems/Problem 5 (Created page with "== Problem == If <math>x, y, z</math> are reals such that <math>0\le x, y, z \le 1</math>, show that <math>\frac{x}{y + z + 1} + \frac{y}{z + x + 1} + \frac{z}{x + y + 1} \le 1 ...")
- 11:02, 5 October 2012 (diff | hist) . . (+242) . . N 1980 USAMO Problems/Problem 4 (Created page with "== Problem == The insphere of a tetrahedron touches each face at its centroid. Show that the tetrahedron is regular. == Solution == {{solution}} == See Also == {{USAMO box|year...")
- 11:02, 5 October 2012 (diff | hist) . . (+474) . . N 1980 USAMO Problems/Problem 3 (Created page with "== Problem == <math>A + B + C</math> is an integral multiple of <math>\pi</math>. <math>x, y, </math> and <math>z</math> are real numbers. If <math>x\sin(A)\plus{}y\sin(B)\plus{}...")
- 11:01, 5 October 2012 (diff | hist) . . (+272) . . N 1980 USAMO Problems/Problem 2 (Created page with "== Problem == Find the maximum possible number of three term arithmetic progressions in a monotone sequence of <math>n</math> distinct reals. == Solution == {{solution}} == See...")
- 11:01, 5 October 2012 (diff | hist) . . (+596) . . Nm 1980 USAMO Problems/Problem 1 (Created page with "== Problem == A balance has unequal arms and pans of unequal weight. It is used to weigh three objects. The first object balances against a weight <math>A</math>, when placed in ...")
- 11:00, 5 October 2012 (diff | hist) . . (-8) . . m 1980 USAMO (current)
- 10:59, 5 October 2012 (diff | hist) . . (+47) . . m 1979 USAMO Problems/Problem 5
- 10:59, 5 October 2012 (diff | hist) . . (+38) . . m 1979 USAMO Problems/Problem 4
- 10:59, 5 October 2012 (diff | hist) . . (+45) . . m 1979 USAMO Problems/Problem 3
- 10:58, 5 October 2012 (diff | hist) . . (+10) . . m International Summer School for Young Physicists
- 10:57, 5 October 2012 (diff | hist) . . (0) . . m Vieta's Formulas (→See also)
- 10:56, 5 October 2012 (diff | hist) . . (+41) . . m 1979 USAMO Problems/Problem 2
- 10:56, 5 October 2012 (diff | hist) . . (-2) . . m 1979 USAMO Problems/Problem 1
- 10:55, 5 October 2012 (diff | hist) . . (-12) . . m 1979 USAMO (→See Also) (current)
- 09:33, 18 September 2012 (diff | hist) . . (+10) . . m New York State Math League
- 09:29, 18 September 2012 (diff | hist) . . (-3) . . m 1951 AHSME Problems/Problem 14 (→Problem)
- 18:16, 17 September 2012 (diff | hist) . . (-35) . . m 2012 USAMO Problems (→See Also)
- 18:16, 17 September 2012 (diff | hist) . . (-35) . . m 2011 USAMO Problems (→See Also)
- 18:16, 17 September 2012 (diff | hist) . . (-17) . . m 2010 USAMO Problems
- 18:16, 17 September 2012 (diff | hist) . . (-17) . . m 2009 USAMO Problems (current)
- 18:15, 17 September 2012 (diff | hist) . . (-17) . . m 2008 USAMO Problems
- 18:15, 17 September 2012 (diff | hist) . . (-17) . . m 2007 USAMO Problems
- 18:14, 17 September 2012 (diff | hist) . . (+16) . . m 2006 USAMO Problems
- 18:13, 17 September 2012 (diff | hist) . . (-156) . . m 2006 USAMO Problems (→Resources)
- 18:13, 17 September 2012 (diff | hist) . . (-38) . . m 2005 USAMO (→Resources) (current)
- 18:13, 17 September 2012 (diff | hist) . . (-35) . . m 2005 USAMO Problems (→Resources)
- 18:12, 17 September 2012 (diff | hist) . . (-35) . . m 2000 USAMO Problems (→See Also)
- 18:12, 17 September 2012 (diff | hist) . . (-12) . . m 2000 USAMO
- 18:12, 17 September 2012 (diff | hist) . . (-34) . . m 1999 USAMO Problems (→See Also)
- 18:12, 17 September 2012 (diff | hist) . . (-12) . . m 1999 USAMO (→See Also)
- 18:11, 17 September 2012 (diff | hist) . . (-34) . . m 1998 USAMO Problems (→See Also)
- 18:11, 17 September 2012 (diff | hist) . . (+4) . . m 1997 USAMO (current)
- 18:11, 17 September 2012 (diff | hist) . . (+4) . . m 1998 USAMO (current)
- 18:11, 17 September 2012 (diff | hist) . . (-12) . . m 1998 USAMO (→See Also)
- 18:11, 17 September 2012 (diff | hist) . . (-35) . . m 1997 USAMO Problems (→See Also)
- 18:11, 17 September 2012 (diff | hist) . . (-12) . . m 1997 USAMO (→See Also)
- 18:08, 17 September 2012 (diff | hist) . . (+155) . . m User talk:1=2 (→USA(J)MO)
- 18:06, 17 September 2012 (diff | hist) . . (+17) . . User talk:1=2 (1978 USAMO Complete)
- 18:05, 17 September 2012 (diff | hist) . . (-12) . . m 1978 USAMO (→See Also)
- 15:48, 17 September 2012 (diff | hist) . . (-7) . . Base numbers/Common bases
- 15:29, 17 September 2012 (diff | hist) . . (+294) . . m 1951 AHSME Problems/Problem 6
- 15:28, 17 September 2012 (diff | hist) . . (-1) . . m 1977 USAMO Problems/Problem 2 (→Problem)
- 15:28, 17 September 2012 (diff | hist) . . (-1) . . m 1977 USAMO Problems (→Problem 2)
- 15:27, 17 September 2012 (diff | hist) . . (-43) . . m 1977 USAMO Problems (→Problem 2)
- 15:26, 17 September 2012 (diff | hist) . . (+88) . . m 1978 USAMO Problems (→Problem 5)
- 15:26, 17 September 2012 (diff | hist) . . (+43) . . m 1978 USAMO Problems (→Problem 4)
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