User contributions
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- 14:39, 25 June 2023 (diff | hist) . . (-2) . . m New York State Math League (fixed link to NYSML website) (current)
- 09:56, 20 July 2016 (diff | hist) . . (-91) . . m 2001 USAMO Problems (→Resources) (current)
- 09:52, 20 July 2016 (diff | hist) . . (+1) . . m 2000 USAMO Problems/Problem 5 (→= Solution 1) (current)
- 09:52, 20 July 2016 (diff | hist) . . (+20) . . m 2000 USAMO Problems/Problem 5
- 09:51, 20 July 2016 (diff | hist) . . (+6) . . m 2000 USAMO Problems/Problem 3 (→See Also)
- 09:50, 20 July 2016 (diff | hist) . . (+19) . . m 2000 USAMO Problems/Problem 1
- 09:47, 20 July 2016 (diff | hist) . . (-64) . . m 1999 USAMO Problems/Problem 4 (current)
- 09:46, 20 July 2016 (diff | hist) . . (-66) . . m 1999 USAMO Problems/Problem 2
- 09:44, 20 July 2016 (diff | hist) . . (+45) . . m 1998 USAMO Problems/Problem 5 (→See Also) (current)
- 09:44, 20 July 2016 (diff | hist) . . (+81) . . m 1998 USAMO Problems/Problem 3 (→See Also)
- 09:41, 20 July 2016 (diff | hist) . . (-930) . . 1997 USAMO Problems/Problem 5 (One of the solutions was a PNG file (bad), and the other was a sketch (bad))
- 09:36, 20 July 2016 (diff | hist) . . (-14) . . m User talk:1=2 (→USA(J)MO)
- 09:33, 20 July 2016 (diff | hist) . . (+53) . . m 1996 USAMO Problems/Problem 6 (→See Also)
- 09:31, 20 July 2016 (diff | hist) . . (+339) . . N 1996 USAMO Problems/Problem 6 (Created page with "==Problem== Determine (with proof) whether there is a subset <math>X</math> of the integers with the following property: for any integer <math>n</math> there is exactly one so...")
- 09:29, 20 July 2016 (diff | hist) . . (+3) . . m 1996 USAMO Problems/Problem 1 (→See Also)
- 09:29, 20 July 2016 (diff | hist) . . (+3) . . m 1996 USAMO Problems/Problem 2 (→See Also)
- 09:28, 20 July 2016 (diff | hist) . . (+3) . . m 1996 USAMO Problems/Problem 3 (→See Also)
- 09:28, 20 July 2016 (diff | hist) . . (+3) . . m 1996 USAMO Problems/Problem 4 (→See Also) (current)
- 09:28, 20 July 2016 (diff | hist) . . (-8) . . m 1996 USAMO Problems/Problem 5 (→See Also)
- 09:27, 20 July 2016 (diff | hist) . . (+125) . . 1996 USAMO Problems/Problem 5 (Reconstructed from page template)
- 09:26, 20 July 2016 (diff | hist) . . (+116) . . m 1996 USAMO Problems/Problem 4
- 09:25, 20 July 2016 (diff | hist) . . (+8) . . 1996 USAMO Problems/Problem 3 (Reconstructed from page template)
- 09:25, 20 July 2016 (diff | hist) . . (+115) . . m 1996 USAMO Problems/Problem 2
- 09:23, 20 July 2016 (diff | hist) . . (+126) . . 1996 USAMO Problems/Problem 1 (Reconstructed from page template)
- 09:19, 20 July 2016 (diff | hist) . . (-8) . . m 1996 USAMO (current)
- 11:59, 19 July 2016 (diff | hist) . . (+257) . . m 1983 USAMO Problems/Problem 5 (→Solution)
- 10:15, 19 July 2016 (diff | hist) . . (+118) . . N Category:Geometric Construction Problems (+ Description) (current)
- 10:07, 19 July 2016 (diff | hist) . . (+86) . . m 1967 IMO Problems/Problem 4
- 10:04, 19 July 2016 (diff | hist) . . (+85) . . m 1962 IMO Problems/Problem 5 (→See Also) (current)
- 10:03, 19 July 2016 (diff | hist) . . (+97) . . m 1961 IMO Problems/Problem 5 (→Solution)
- 10:03, 19 July 2016 (diff | hist) . . (+45) . . m 1960 IMO Problems/Problem 6 (→See Also)
- 10:02, 19 July 2016 (diff | hist) . . (+85) . . m 1960 IMO Problems/Problem 4 (→See Also)
- 10:02, 19 July 2016 (diff | hist) . . (+45) . . m 1959 IMO Problems/Problem 6 (→See Also)
- 10:01, 19 July 2016 (diff | hist) . . (+45) . . m 1959 IMO Problems/Problem 4 (→See Also)
- 10:01, 19 July 2016 (diff | hist) . . (+42) . . m 2000 USAMO Problems/Problem 1 (→See Also)
- 10:00, 19 July 2016 (diff | hist) . . (+4) . . m 1995 USAMO (current)
- 10:00, 19 July 2016 (diff | hist) . . (-12) . . m 1995 USAMO (→See Also)
- 09:59, 19 July 2016 (diff | hist) . . (+45) . . m 1986 USAMO Problems/Problem 4 (→See Also) (current)
- 09:58, 19 July 2016 (diff | hist) . . (+45) . . m 1983 USAMO Problems/Problem 4 (→See Also) (current)
- 09:57, 19 July 2016 (diff | hist) . . (+45) . . m 1981 USAMO Problems/Problem 1 (→See Also)
- 09:57, 19 July 2016 (diff | hist) . . (+45) . . m 1978 USAMO Problems/Problem 2 (→See Also)
- 08:52, 19 July 2016 (diff | hist) . . (+96) . . m 2015 IMO Problems/Problem 5
- 08:51, 19 July 2016 (diff | hist) . . (+81) . . m 2012 IMO Problems/Problem 4
- 08:50, 19 July 2016 (diff | hist) . . (+82) . . m 2011 IMO Problems/Problem 3
- 08:49, 19 July 2016 (diff | hist) . . (+42) . . m 2010 IMO Problems/Problem 1 (→See Also)
- 08:49, 19 July 2016 (diff | hist) . . (+82) . . m 2008 IMO Problems/Problem 4
- 08:47, 19 July 2016 (diff | hist) . . (+82) . . m 1999 IMO Problems/Problem 6
- 08:45, 19 July 2016 (diff | hist) . . (+126) . . m 1998 IMO Problems/Problem 6
- 08:44, 19 July 2016 (diff | hist) . . (+82) . . m 1990 IMO Problems/Problem 4
- 08:43, 19 July 2016 (diff | hist) . . (+42) . . m 1987 IMO Problems/Problem 4
- 08:42, 19 July 2016 (diff | hist) . . (+82) . . m 1986 IMO Problems/Problem 5
- 08:41, 19 July 2016 (diff | hist) . . (+82) . . m 1983 IMO Problems/Problem 1
- 08:40, 19 July 2016 (diff | hist) . . (+42) . . m 1981 IMO Problems/Problem 6
- 08:38, 19 July 2016 (diff | hist) . . (+82) . . m 1972 IMO Problems/Problem 5
- 08:37, 19 July 2016 (diff | hist) . . (+82) . . m 1968 IMO Problems/Problem 5
- 08:28, 19 July 2016 (diff | hist) . . (+82) . . m 2015 USAJMO Problems/Problem 4
- 08:25, 19 July 2016 (diff | hist) . . (+49) . . m 1993 USAMO Problems/Problem 3
- 08:25, 19 July 2016 (diff | hist) . . (+7) . . m 1993 USAMO Problems (→Problem 3) (current)
- 08:23, 19 July 2016 (diff | hist) . . (+42) . . m 2002 USAMO Problems/Problem 4 (→See also)
- 08:21, 19 July 2016 (diff | hist) . . (+81) . . m 2016 USAMO Problems/Problem 4
- 08:20, 19 July 2016 (diff | hist) . . (+122) . . N Category:Functional Equation Problems (+ Description) (current)
- 08:19, 19 July 2016 (diff | hist) . . (+82) . . m 2014 USAMO Problems/Problem 2
- 08:18, 19 July 2016 (diff | hist) . . (+7) . . m 2012 USAMO Problems/Problem 4 (→See also) (current)
- 08:16, 19 July 2016 (diff | hist) . . (0) . . m 1954 AHSME Problems/Problem 50 (→See also)
- 08:16, 19 July 2016 (diff | hist) . . (+5) . . m 1954 AHSME Problems/Problem 50 (→Solution)
- 08:14, 19 July 2016 (diff | hist) . . (+13) . . m 2015 IMO Problems/Problem 1 (→See Also) (current)
- 08:14, 19 July 2016 (diff | hist) . . (-4) . . m 2015 IMO Problems/Problem 1 (→See Also)
- 08:14, 19 July 2016 (diff | hist) . . (0) . . m Mock AIME 5 2005-2006 Problems/Problem 3 (→See also) (current)
- 08:13, 19 July 2016 (diff | hist) . . (+94) . . N Category:Complex Number Problems (+ Description) (current)
- 08:11, 19 July 2016 (diff | hist) . . (-8) . . m User talk:1=2 (→USA(J)MO)
- 08:10, 19 July 2016 (diff | hist) . . (+16) . . m 1996 USAMO Problems (current)
- 08:09, 19 July 2016 (diff | hist) . . (+11) . . m 1995 USAMO Problems/Problem 5 (→See Also)
- 08:08, 19 July 2016 (diff | hist) . . (+711) . . N 1995 USAMO Problems/Problem 5 (Created page with "==Problem== Suppose that in a certain society, each pair of persons can be classified as either ''amicable'' or ''hostile''. We shall say that each member of an amicable pair ...")
- 08:07, 19 July 2016 (diff | hist) . . (+147) . . 1995 USAMO Problems/Problem 4 (Reconstructed from page template)
- 08:06, 19 July 2016 (diff | hist) . . (+105) . . 1995 USAMO Problems/Problem 3 (Reconstructed from page template)
- 08:05, 19 July 2016 (diff | hist) . . (-1) . . m 1995 USAMO Problems/Problem 2 (→Resources)
- 08:05, 19 July 2016 (diff | hist) . . (+42) . . m 1995 USAMO Problems/Problem 1
- 08:03, 19 July 2016 (diff | hist) . . (-12) . . m 1994 USAMO (→See Also) (current)
- 08:03, 19 July 2016 (diff | hist) . . (0) . . m 1994 USAMO Problems/Problem 5 (→See Also)
- 08:03, 19 July 2016 (diff | hist) . . (-2) . . m 1994 USAMO Problems/Problem 5 (→See Also)
- 08:03, 19 July 2016 (diff | hist) . . (+772) . . N 1994 USAMO Problems/Problem 5 (Created page with "==Problem== Let <math>\, |U|, \, \sigma(U) \,</math> and <math>\, \pi(U) \,</math> denote the number of elements, the sum, and the product, respectively, of a finite set <math...")
- 08:02, 19 July 2016 (diff | hist) . . (+109) . . 1994 USAMO Problems/Problem 3 (Reconstructed from page template) (current)
- 08:01, 19 July 2016 (diff | hist) . . (+127) . . 1994 USAMO Problems/Problem 2 (Reconstructed from page template)
- 07:59, 19 July 2016 (diff | hist) . . (+123) . . 1994 USAMO Problems/Problem 1 (Reconstructed from page template)
- 07:58, 19 July 2016 (diff | hist) . . (+666) . . 1994 USAMO Problems (Added Problem 5) (current)
- 07:56, 19 July 2016 (diff | hist) . . (+45) . . m 1993 USAMO Problems/Problem 4 (→Resources) (current)
- 07:56, 19 July 2016 (diff | hist) . . (+39) . . m 1993 USAMO Problems/Problem 3 (→Resources)
- 07:55, 19 July 2016 (diff | hist) . . (+2) . . m 1993 USAMO Problems/Problem 3 (→Solution)
- 07:54, 19 July 2016 (diff | hist) . . (+40) . . m 1993 USAMO Problems/Problem 2 (→Resources)
- 07:54, 19 July 2016 (diff | hist) . . (0) . . m 1993 USAMO Problems/Problem 1 (→See also) (current)
- 07:54, 19 July 2016 (diff | hist) . . (-45) . . m 1993 USAMO Problems (→See Also)
- 07:53, 19 July 2016 (diff | hist) . . (-12) . . m 1993 USAMO (current)
- 07:53, 19 July 2016 (diff | hist) . . (+39) . . m 1992 USAMO Problems/Problem 5 (→Resources)
- 07:53, 19 July 2016 (diff | hist) . . (+2) . . m 1992 USAMO Problems/Problem 4 (→Solution 2)
- 07:53, 19 July 2016 (diff | hist) . . (+19) . . m 1992 USAMO Problems/Problem 4 (→Solution)
- 07:52, 19 July 2016 (diff | hist) . . (+45) . . m 1992 USAMO Problems/Problem 3 (→Resources) (current)
- 07:52, 19 July 2016 (diff | hist) . . (+6) . . m 1992 USAMO Problems/Problem 3 (→Solution)
- 07:41, 19 July 2016 (diff | hist) . . (-31) . . m 1992 USAMO Problems/Problem 2 (→Solution 4) (current)
- 07:40, 19 July 2016 (diff | hist) . . (+26) . . m 1992 USAMO Problems/Problem 2
- 07:40, 19 July 2016 (diff | hist) . . (-1) . . m 1992 USAMO Problems/Problem 1 (→Resources)
- 07:40, 19 July 2016 (diff | hist) . . (-12) . . m 1992 USAMO (current)
- 07:39, 19 July 2016 (diff | hist) . . (-1) . . m 1991 USAMO Problems/Problem 5 (→Resources)
- 07:39, 19 July 2016 (diff | hist) . . (-1) . . m 1991 USAMO Problems/Problem 4 (→Resources) (current)
- 07:39, 19 July 2016 (diff | hist) . . (-1) . . m 1991 USAMO Problems/Problem 3 (→Resources)
- 07:38, 19 July 2016 (diff | hist) . . (-1) . . m 1991 USAMO Problems/Problem 2 (→Resources) (current)
- 07:38, 19 July 2016 (diff | hist) . . (+44) . . m 1991 USAMO Problems/Problem 1
- 23:54, 18 July 2016 (diff | hist) . . (+78) . . m 2011 AIME I Problems/Problem 8 (→See also)
- 23:54, 18 July 2016 (diff | hist) . . (+78) . . m 2011 AIME I Problems/Problem 13 (→See also)
- 23:51, 18 July 2016 (diff | hist) . . (+78) . . m 2012 AIME I Problems/Problem 8 (→See also)
- 23:50, 18 July 2016 (diff | hist) . . (+78) . . m 2013 AIME I Problems/Problem 7 (→See also)
- 23:47, 18 July 2016 (diff | hist) . . (+34) . . m 2015 AIME I Problems/Problem 15 (→See also)
- 23:46, 18 July 2016 (diff | hist) . . (+78) . . m 2015 AIME II Problems/Problem 9 (→See also)
- 23:45, 18 July 2016 (diff | hist) . . (+78) . . m 2016 AIME I Problems/Problem 4 (→See also)
- 23:44, 18 July 2016 (diff | hist) . . (+78) . . m 2016 AIME II Problems/Problem 14 (→See also)
- 23:37, 18 July 2016 (diff | hist) . . (+87) . . m 1973 IMO Problems/Problem 2
- 23:36, 18 July 2016 (diff | hist) . . (+87) . . m 1972 IMO Problems/Problem 6
- 23:36, 18 July 2016 (diff | hist) . . (+88) . . m 1971 IMO Problems/Problem 4
- 23:35, 18 July 2016 (diff | hist) . . (+34) . . m 1970 IMO Problems/Problem 5 (→Solution) (current)
- 23:35, 18 July 2016 (diff | hist) . . (+34) . . m 1968 IMO Problems/Problem 4 (→See Also) (current)
- 23:34, 18 July 2016 (diff | hist) . . (+88) . . m 1967 IMO Problems/Problem 2
- 23:33, 18 July 2016 (diff | hist) . . (+74) . . m 1966 IMO Problems/Problem 3 (→See Also)
- 23:32, 18 July 2016 (diff | hist) . . (+75) . . m 1965 IMO Problems/Problem 3 (→Solution)
- 23:32, 18 July 2016 (diff | hist) . . (+74) . . m 1964 IMO Problems/Problem 6 (→Solution)
- 23:31, 18 July 2016 (diff | hist) . . (+74) . . m 1963 IMO Problems/Problem 2 (→See Also)
- 23:30, 18 July 2016 (diff | hist) . . (+74) . . m 1962 IMO Problems/Problem 7 (→See Also)
- 23:30, 18 July 2016 (diff | hist) . . (+74) . . m 1962 IMO Problems/Problem 3 (→See Also)
- 23:29, 18 July 2016 (diff | hist) . . (+75) . . m 1961 IMO Problems/Problem 6 (→Solution) (current)
- 23:28, 18 July 2016 (diff | hist) . . (+74) . . m 1960 IMO Problems/Problem 6 (→See Also)
- 23:28, 18 July 2016 (diff | hist) . . (+34) . . m 1960 IMO Problems/Problem 5 (→See Also) (current)
- 23:27, 18 July 2016 (diff | hist) . . (+34) . . m 1959 IMO Problems/Problem 6 (→See Also)
- 23:20, 18 July 2016 (diff | hist) . . (+73) . . m 1992 USAMO Problems/Problem 4 (→Resources)
- 23:18, 18 July 2016 (diff | hist) . . (+34) . . m 1985 USAMO Problems/Problem 3 (→See Also)
- 23:18, 18 July 2016 (diff | hist) . . (+34) . . m 1984 USAMO Problems/Problem 3 (→See Also)
- 23:18, 18 July 2016 (diff | hist) . . (+34) . . m 1983 USAMO Problems/Problem 4 (→See Also)
- 23:17, 18 July 2016 (diff | hist) . . (+34) . . m 1982 USAMO Problems/Problem 5 (→See Also)
- 23:17, 18 July 2016 (diff | hist) . . (+34) . . m 1980 USAMO Problems/Problem 4 (→See Also)
- 23:16, 18 July 2016 (diff | hist) . . (+34) . . m 1979 USAMO Problems/Problem 2 (→See Also)
- 23:16, 18 July 2016 (diff | hist) . . (+34) . . m 1978 USAMO Problems/Problem 4 (→See Also) (current)
- 23:15, 18 July 2016 (diff | hist) . . (+34) . . m 1977 USAMO Problems/Problem 4 (→See Also)
- 23:15, 18 July 2016 (diff | hist) . . (+34) . . m 1976 USAMO Problems/Problem 4 (→See Also) (current)
- 23:14, 18 July 2016 (diff | hist) . . (+34) . . m 1975 USAMO Problems/Problem 2 (→See Also)
- 23:13, 18 July 2016 (diff | hist) . . (+34) . . m 1974 USAMO Problems/Problem 3 (→See Also) (current)
- 23:12, 18 July 2016 (diff | hist) . . (+34) . . m 1973 USAMO Problems/Problem 1 (→See also)
- 23:12, 18 July 2016 (diff | hist) . . (+34) . . m 1972 USAMO Problems/Problem 2 (→See Also)
- 22:12, 18 July 2016 (diff | hist) . . (+1,705) . . 1983 USAMO Problems/Problem 5 (Rewrite, will finish proof later)
- 19:19, 18 July 2016 (diff | hist) . . (+17) . . m User talk:1=2 (→USA(J)MO)
- 19:17, 18 July 2016 (diff | hist) . . (-11) . . m 1991 USAMO Problems (current)
- 19:17, 18 July 2016 (diff | hist) . . (-12) . . m 1991 USAMO (→See Also) (current)
- 19:17, 18 July 2016 (diff | hist) . . (-1) . . m 1990 USAMO Problems/Problem 5 (→See Also)
- 19:16, 18 July 2016 (diff | hist) . . (-1) . . m 1989 USAMO Problems/Problem 5 (→See Also) (current)
- 19:15, 18 July 2016 (diff | hist) . . (-1) . . m 1990 USAMO Problems/Problem 5 (→Resources)
- 19:15, 18 July 2016 (diff | hist) . . (-1) . . m 1990 USAMO Problems/Problem 4 (→Resources) (current)
- 19:14, 18 July 2016 (diff | hist) . . (-1) . . m 1990 USAMO Problems/Problem 3 (→Resources) (current)
- 19:14, 18 July 2016 (diff | hist) . . (0) . . m 1990 USAMO Problems/Problem 2 (→See also) (current)
- 19:14, 18 July 2016 (diff | hist) . . (-3) . . m 1990 USAMO Problems/Problem 1 (→See Also)
- 19:13, 18 July 2016 (diff | hist) . . (0) . . m 1990 USAMO Problems/Problem 1 (→See also)
- 19:12, 18 July 2016 (diff | hist) . . (+3) . . m User talk:1=2 (→USA(J)MO)
- 19:12, 18 July 2016 (diff | hist) . . (-12) . . m 1990 USAMO (→See Also) (current)
- 19:12, 18 July 2016 (diff | hist) . . (-1) . . m 1989 USAMO Problems/Problem 5 (→Resources)
- 19:11, 18 July 2016 (diff | hist) . . (+40) . . m 1989 USAMO Problems/Problem 4 (→See Also) (current)
- 19:11, 18 July 2016 (diff | hist) . . (-1) . . m 1989 USAMO Problems/Problem 3 (→Resources) (current)
- 19:11, 18 July 2016 (diff | hist) . . (0) . . m 1989 USAMO Problems/Problem 2 (→See also)
- 19:10, 18 July 2016 (diff | hist) . . (0) . . m 1989 USAMO Problems/Problem 1 (current)
- 19:10, 18 July 2016 (diff | hist) . . (+19) . . m 1988 USAMO Problems/Problem 4
- 18:59, 18 July 2016 (diff | hist) . . (+19) . . m 1988 USAMO Problems/Problem 2
- 18:58, 18 July 2016 (diff | hist) . . (-69) . . 1988 USAMO Problems/Problem 1 (Removed extraneous rebuttal) (current)
- 18:52, 18 July 2016 (diff | hist) . . (+41) . . m 1989 USAMO Problems (current)
- 18:51, 18 July 2016 (diff | hist) . . (-8) . . m 1989 USAMO (current)
- 18:45, 18 July 2016 (diff | hist) . . (+41) . . m 1988 USAMO Problems
- 18:45, 18 July 2016 (diff | hist) . . (-8) . . m 1988 USAMO (current)
- 18:44, 18 July 2016 (diff | hist) . . (+662) . . N 1987 USAMO Problems/Problem 5 (Created page with "== Problem == <math>a_1, a_2, \cdots, a_n</math> is a sequence of 0's and 1's. T is the number of triples <math>(a_i, a_j, a_k)</math> with <math>i<j<k</math> which are not eq...") (current)
- 18:44, 18 July 2016 (diff | hist) . . (+411) . . N 1987 USAMO Problems/Problem 4 (Created page with "==Problem== M is the midpoint of XY. The points P and Q lie on a line through Y on opposite sides of Y, such that <math>|XQ| = 2|MP|</math> and <math>\frac{|XY|}2 < |MP| < \fr...") (current)
- 18:42, 18 July 2016 (diff | hist) . . (+393) . . N 1987 USAMO Problems/Problem 2 (Created page with "==Problem== The feet of the angle bisectors of <math>\Delta ABC</math> form a right-angled triangle. If the right-angle is at <math>X</math>, where <math>AX</math> is the bise...") (current)
- 18:42, 18 July 2016 (diff | hist) . . (+600) . . N 1987 USAMO Problems/Problem 3 (Created page with "==Problem== <math>X</math> is the smallest set of polynomials <math>p(x)</math> such that: : 1. <math>p(x) = x</math> belongs to <math>X</math>. : 2. If <math>r(x)</math> be...")
- 18:42, 18 July 2016 (diff | hist) . . (+4) . . m 1987 USAMO Problems (current)
- 18:31, 18 July 2016 (diff | hist) . . (-402) . . m 1987 USAMO Problems/Problem 1
- 18:29, 18 July 2016 (diff | hist) . . (+41) . . m 1987 USAMO Problems
- 18:29, 18 July 2016 (diff | hist) . . (-8) . . m 1987 USAMO (current)
- 14:51, 18 July 2016 (diff | hist) . . (-42) . . m User talk:1=2
- 14:51, 18 July 2016 (diff | hist) . . (+1,159) . . N 1986 USAMO Problems/Problem 5 (Created page with "== Problem == By a partition <math>\pi</math> of an integer <math>n\ge 1</math>, we mean here a representation of <math>n</math> as a sum of one or more positive integers wher...")
- 14:50, 18 July 2016 (diff | hist) . . (0) . . m 1986 USAMO Problems/Problem 4 (→See Also)
- 14:50, 18 July 2016 (diff | hist) . . (+800) . . N 1986 USAMO Problems/Problem 4 (Created page with "==Problem== Two distinct circles <math>K_1</math> and <math>K_2</math> are drawn in the plane. They intersect at points <math>A</math> and <math>B</math>, where <math>AB</math...")
- 14:49, 18 July 2016 (diff | hist) . . (0) . . m 1986 USAMO Problems/Problem 3
- 14:49, 18 July 2016 (diff | hist) . . (+495) . . 1986 USAMO Problems/Problem 3
- 14:48, 18 July 2016 (diff | hist) . . (-16) . . m 1986 USAMO Problems/Problem 2 (→See Also) (current)
- 14:48, 18 July 2016 (diff | hist) . . (+386) . . m 1986 USAMO Problems/Problem 2
- 14:45, 18 July 2016 (diff | hist) . . (+113) . . 1986 USAMO Problems/Problem 1
- 14:44, 18 July 2016 (diff | hist) . . (+41) . . m 1986 USAMO Problems
- 14:44, 18 July 2016 (diff | hist) . . (+41) . . m 1985 USAMO Problems (current)
- 14:43, 18 July 2016 (diff | hist) . . (-8) . . m 1986 USAMO (current)
- 13:03, 18 July 2016 (diff | hist) . . (+1,638) . . N 1985 USAMO Problems/Problem 5 (Created page with "== Problem == Let <math>a_1,a_2,a_3,\cdots</math> be a non-decreasing sequence of positive integers. For <math>m\ge1</math>, define <math>b_m=\min\{n: a_n \ge m\}</math>, that...") (current)
- 12:54, 18 July 2016 (diff | hist) . . (+553) . . N 1985 USAMO Problems/Problem 4 (Created page with "== Problem == There are <math>n</math> people at a party. Prove that there are two people such that, of the remaining <math>n-2</math> people, there are at least <math>\lfloor...") (current)
- 12:54, 18 July 2016 (diff | hist) . . (+370) . . N 1985 USAMO Problems/Problem 3 (Created page with "== Problem == Let <math>A,B,C,D</math> denote four points in space such that at most one of the distances <math>AB,AC,AD,BC,BD,CD</math> is greater than <math>1</math>. Determ...")
- 12:53, 18 July 2016 (diff | hist) . . (+273) . . N 1985 USAMO Problems/Problem 2 (Created page with "== Problem == Determine each real root of <math>x^4-(2\cdot10^{10}+1)x^2-x+10^{20}+10^{10}-1=0</math> correct to four decimal places. ==Solution== {{solution}} == See Also...")
- 12:45, 18 July 2016 (diff | hist) . . (0) . . m 1985 USAMO Problems/Problem 1 (→See Also)
- 12:43, 18 July 2016 (diff | hist) . . (+427) . . N 1985 USAMO Problems/Problem 1 (Created page with "==Problem== Determine whether or not there are any positive integral solutions of the simultaneous equations <cmath>x_1^2+x_2^2+\cdots+x_{1985}^2=y^3, \hspace{20pt} x_1^3+x_...")
- 12:42, 18 July 2016 (diff | hist) . . (-8) . . m 1985 USAMO (current)
- 12:42, 18 July 2016 (diff | hist) . . (-12) . . m 1984 USAMO (→See Also) (current)
- 12:42, 18 July 2016 (diff | hist) . . (-12) . . m 1983 USAMO (→See Also) (current)
- 12:41, 18 July 2016 (diff | hist) . . (+4) . . m 1984 USAMO
- 12:40, 18 July 2016 (diff | hist) . . (+468) . . N 1984 USAMO Problems/Problem 5 (Created page with "== Problem == <math>P(x)</math> is a polynomial of degree <math>3n</math> such that <cmath>\begin{eqnarray*} P(0) = P(3) = \cdots &=& P(3n) = 2, \\ P(1) = P(4) = \cdots &=& P...")
- 12:35, 18 July 2016 (diff | hist) . . (+532) . . N 1984 USAMO Problems/Problem 4 (Created page with "== Problem == A difficult mathematical competition consisted of a Part I and a Part II with a combined total of <math>28</math> problems. Each contestant solved <math>7</math>...") (current)
- 12:33, 18 July 2016 (diff | hist) . . (+1) . . m 1984 USAMO Problems (→Problem 4) (current)
- 12:33, 18 July 2016 (diff | hist) . . (+485) . . N 1984 USAMO Problems/Problem 3 (Created page with "== Problem == <math>P</math>, <math>A</math>, <math>B</math>, <math>C</math>, and <math>D</math> are five distinct points in space such that <math>\angle APB = \angle BPC = \a...")
- 12:30, 18 July 2016 (diff | hist) . . (+39) . . m 1984 USAMO Problems (→Problem 3)
- 12:29, 18 July 2016 (diff | hist) . . (+691) . . m 1984 USAMO Problems/Problem 2
- 12:28, 18 July 2016 (diff | hist) . . (+1) . . m 1984 USAMO Problems/Problem 1 (→= Solution 2)
- 12:28, 18 July 2016 (diff | hist) . . (+6) . . m 1984 USAMO Problems/Problem 1 (→Solution)
- 12:26, 18 July 2016 (diff | hist) . . (+41) . . m 1984 USAMO Problems
- 12:25, 18 July 2016 (diff | hist) . . (+1) . . m 1983 USAMO Problems (current)
- 12:24, 18 July 2016 (diff | hist) . . (-14) . . m User talk:1=2 (→USA(J)MO)
- 00:02, 18 July 2016 (diff | hist) . . (+1,142) . . N 1983 USAMO Problems/Problem 5 (I'll leave my progress up for anyone who wants to finish the problem. I have a solution sketch in mind, but I need sleep now.)
- 23:20, 17 July 2016 (diff | hist) . . (0) . . m 1983 USAMO Problems/Problem 4 (→See Also)
- 23:19, 17 July 2016 (diff | hist) . . (-37) . . m 1983 USAMO Problems/Problem 4 (→Solution)
- 23:18, 17 July 2016 (diff | hist) . . (+4,995) . . N 1983 USAMO Problems/Problem 4 (Created page with "== Problem == Six segments <math>S_1, S_2, S_3, S_4, S_5,</math> and <math>S_6</math> are given in a plane. These are congruent to the edges <math>AB, AC, AD, BC, BD,</math> a...")
- 22:31, 17 July 2016 (diff | hist) . . (0) . . m 1983 USAMO Problems/Problem 3 (→See Also)
- 22:31, 17 July 2016 (diff | hist) . . (+399) . . N 1983 USAMO Problems/Problem 3 (Created page with "== Problem == Each set of a finite family of subsets of a line is a union of two closed intervals. Moreover, any three of the sets of the family have a point in common. Prove ...")
- 22:29, 17 July 2016 (diff | hist) . . (+137) . . m 1983 USAMO Problems/Problem 1 (→Problem) (current)
- 22:26, 17 July 2016 (diff | hist) . . (+1,189) . . 1983 USAMO Problems/Problem 1 (The solution page was poorly written, so it has been re-written.)
- 22:18, 17 July 2016 (diff | hist) . . (+1) . . m 1983 USAMO Problems
- 22:18, 17 July 2016 (diff | hist) . . (+40) . . m 1983 USAMO Problems
- 22:17, 17 July 2016 (diff | hist) . . (+4) . . m 1983 USAMO
- 18:10, 18 July 2015 (diff | hist) . . (+8) . . m 1954 AHSME Problems/Problem 50 (Corrected LaTeX errors.)
- 18:09, 18 July 2015 (diff | hist) . . (+2,352) . . N 1954 AHSME Problems/Problem 50 (Creation of page, addition of solution, and standard footer.)
- 18:00, 18 July 2015 (diff | hist) . . (+11) . . m 1952 AHSME Problems/Problem 50 (Corrected AHSME box format)
- 17:59, 18 July 2015 (diff | hist) . . (-8) . . m 1952 AHSME Problems/Problem 50 (Added solution tag)
- 17:56, 18 July 2015 (diff | hist) . . (-4) . . m 1954 AHSME Problems/Problem 48 (Corrected LaTeX errors.) (current)
- 17:55, 18 July 2015 (diff | hist) . . (+3,333) . . N 1954 AHSME Problems/Problem 48 (Creation of page, addition of solution, and standard footer.)
- 17:36, 18 July 2015 (diff | hist) . . (+51) . . m 1954 AHSME Problems/Problem 30 (Corrected LaTeX errors.) (current)
- 17:34, 18 July 2015 (diff | hist) . . (+2,366) . . N 1954 AHSME Problems/Problem 30 (Creation of page, addition of solution, and standard footer.)
- 17:24, 18 July 2015 (diff | hist) . . (+1,537) . . N 1953 AHSME Problems/Problem 31 (Creation of page, addition of solution, and standard footer.) (current)
- 17:11, 18 July 2015 (diff | hist) . . (+71) . . m 1952 AHSME Problems/Problem 25 (Added categories: Introductory Algebra Problems, Rate Problems) (current)
- 17:11, 18 July 2015 (diff | hist) . . (+71) . . m 1952 AHSME Problems/Problem 10 (Added categories: Introductory Algebra Problems, Rate Problems) (current)
- 17:09, 18 July 2015 (diff | hist) . . (+27) . . m 1951 AHSME Problems/Problem 50 (Added category: Rate Problems)
- 17:07, 18 July 2015 (diff | hist) . . (+27) . . m 1951 AHSME Problems/Problem 13 (Added category: Rate Problems) (current)
- 17:06, 18 July 2015 (diff | hist) . . (+27) . . m 1950 AHSME Problems/Problem 29 (Added category: Rate Problems)
- 17:05, 18 July 2015 (diff | hist) . . (+27) . . m 1950 AHSME Problems/Problem 28 (Added category: Rate Problems)
- 17:05, 18 July 2015 (diff | hist) . . (+68) . . N Category:Rate Problems (Creation of new category: Rate Problems) (current)
- 17:04, 18 July 2015 (diff | hist) . . (+27) . . m 1950 AHSME Problems/Problem 27 (Added category: Rate Problems)
- 17:03, 18 July 2015 (diff | hist) . . (+27) . . m 1950 AHSME Problems/Problem 50 (Added category: Rate Problems)
- 16:57, 18 July 2015 (diff | hist) . . (-35) . . m 1950 AHSME (Removed redundant double-link to AHSME Problems and Solutions)
- 18:54, 13 July 2014 (diff | hist) . . (0) . . m 1992 AIME Problems/Problem 8 (→Solution)
- 18:10, 10 July 2014 (diff | hist) . . (+804) . . Mock AIME 2 2006-2007 Problems/Problem 7 (current)
- 18:07, 10 July 2014 (diff | hist) . . (0) . . m Mock AIME 2 2006-2007 Problems/Problem 7 (→Problem)
- 18:07, 10 July 2014 (diff | hist) . . (-44) . . m Mock AIME 2 2006-2007 Problems/Problem 7 (→Problem)
- 09:23, 27 June 2014 (diff | hist) . . (-4) . . m 1985 USAMO Problems (- you)
- 09:23, 27 June 2014 (diff | hist) . . (+384) . . 1985 USAMO Problems (Corrected statements for problems 4 and 5.)
- 13:56, 17 August 2013 (diff | hist) . . (+25) . . m AoPS Wiki:AoPS Community Awards (→Perfect AIME Scores)
- 14:52, 31 March 2013 (diff | hist) . . (+1) . . m AoPS Wiki:AoPS Community Awards (→Perfect AIME Scores)
- 17:42, 16 March 2013 (diff | hist) . . (+1) . . m 2013 AIME I Problems/Problem 5 (→Solution 4)
- 17:42, 16 March 2013 (diff | hist) . . (-10) . . m 2013 AIME I Problems/Problem 5 (→See Also)
- 17:41, 16 March 2013 (diff | hist) . . (+55) . . m 2013 AIME I Problems/Problem 5 (→Solution 4)
- 17:41, 16 March 2013 (diff | hist) . . (+3,734) . . 2013 AIME I Problems/Problem 5
- 17:32, 16 March 2013 (diff | hist) . . (-3) . . m 2013 AIME I (current)
- 17:32, 16 March 2013 (diff | hist) . . (-34) . . m 2013 AIME I (→See Also)
- 17:31, 16 March 2013 (diff | hist) . . (+43) . . m 2013 AIME I (made it pretty.)
- 11:53, 6 March 2013 (diff | hist) . . (-14) . . User talk:1=2 (1982 USAMO Complete!)
- 11:38, 6 March 2013 (diff | hist) . . (+583) . . N 1982 USAMO Problems/Problem 5 (Created page with "== Problem == <math>A,B</math>, and <math>C</math> are three interior points of a sphere <math>S</math> such that <math>AB</math> and <math>AC</math> are perpendicular to the dia...")
- 11:37, 6 March 2013 (diff | hist) . . (+284) . . N 1982 USAMO Problems/Problem 4 (Created page with "== Problem == Prove that there exists a positive integer <math>k</math> such that <math>k\cdot2^n+1</math> is composite for every integer <math>n</math>. == Solution == {{soluti...")
- 11:37, 6 March 2013 (diff | hist) . . (+515) . . N 1982 USAMO Problems/Problem 3 (Created page with "== Problem == If a point <math>A_1</math> is in the interior of an equilateral triangle <math>ABC</math> and point <math>A_2</math> is in the interior of <math>\triangle{A_1BC}</...")
- 11:36, 6 March 2013 (diff | hist) . . (+561) . . N 1982 USAMO Problems/Problem 2 (Created page with "== Problem == Let <math>X_r=x^r+y^r+z^r</math> with <math>x,y,z</math> real. It is known that if <math>S_1=0</math>, <math>(*) </math> <math>\frac{S_{m+n}}{m+n}=\frac{S_m}{m}...")
- 11:36, 6 March 2013 (diff | hist) . . (+363) . . N 1982 USAMO Problems/Problem 1 (Created page with "== Problem == In a party with <math>1982</math> persons, among any group of four there is at least one person who knows each of the other three. What is the minimum number of peo...")
- 11:34, 6 March 2013 (diff | hist) . . (+76) . . m 1982 USAMO Problems (accurate wording.)
- 11:34, 6 March 2013 (diff | hist) . . (-2) . . m 1982 USAMO Problems (accurate wording)
- 11:33, 6 March 2013 (diff | hist) . . (-3) . . m 1982 USAMO Problems (→Problem 2)
- 11:33, 6 March 2013 (diff | hist) . . (+130) . . m 1982 USAMO Problems (accurate wording)
- 11:32, 6 March 2013 (diff | hist) . . (+99) . . m 1982 USAMO Problems (accurate wording)
- 11:31, 6 March 2013 (diff | hist) . . (+11) . . m 1982 USAMO Problems (accurate wording)
- 11:30, 6 March 2013 (diff | hist) . . (+90) . . m 1982 USAMO Problems (Made prettier)
- 11:28, 6 March 2013 (diff | hist) . . (-8) . . m 1982 USAMO (Made prettier) (current)
- 13:27, 2 March 2013 (diff | hist) . . (+1) . . Fermat numbers
- 13:27, 2 March 2013 (diff | hist) . . (0) . . m Fermat numbers
- 13:27, 2 March 2013 (diff | hist) . . (+9) . . m Fermat numbers
- 13:27, 2 March 2013 (diff | hist) . . (+25) . . m Fermat numbers
- 13:26, 2 March 2013 (diff | hist) . . (-12) . . m Fermat numbers
- 16:32, 4 November 2012 (diff | hist) . . (-626) . . Natural logarithm (Redirected page to Logarithm#Natural Logarithm) (current)
- 16:31, 4 November 2012 (diff | hist) . . (+273) . . AoPS Wiki:Tutorial (added instructions on how to create internal link to a specific section of an article.)
- 16:29, 4 November 2012 (diff | hist) . . (-4) . . m Logarithm (→Natural Logarithm)
- 16:29, 4 November 2012 (diff | hist) . . (+359) . . Logarithm (moved information from Natural Logarithm page to Natural Logarithm section. Will create redirect shortly...)
- 16:23, 4 November 2012 (diff | hist) . . (+10) . . m Geometric inequality
- 15:07, 17 October 2012 (diff | hist) . . (+6) . . m Sequence (→Monotone Sequences)
- 15:07, 17 October 2012 (diff | hist) . . (+94) . . m Sequence (→Monotone Sequences)
- 15:06, 17 October 2012 (diff | hist) . . (+595) . . Sequence (Added section on monotone sequences; we don't need the wiki pages for these anymore.)
- 15:01, 17 October 2012 (diff | hist) . . (+3,718) . . Bolzano-Weierstrass Theorem
- 14:43, 17 October 2012 (diff | hist) . . (+117) . . m Sequence (added some more terminology)
- 14:41, 17 October 2012 (diff | hist) . . (+184) . . N Bolzano-Weierstrass Theorem (Created page. I'm going to go expand the Sequence page before I post a proof.)
- 14:37, 17 October 2012 (diff | hist) . . (0) . . m Sequence (→See Also)
- 14:37, 17 October 2012 (diff | hist) . . (+181) . . Metric space (Expanded popular metrics)
- 11:27, 5 October 2012 (diff | hist) . . (+9) . . m Barycentric coordinates
- 11:24, 5 October 2012 (diff | hist) . . (+10) . . m Ellipsoid (current)
- 11:23, 5 October 2012 (diff | hist) . . (+10) . . m Lorentz Factor (current)
- 11:17, 5 October 2012 (diff | hist) . . (+9) . . m Quotient (current)
- 11:09, 5 October 2012 (diff | hist) . . (-11) . . User talk:1=2 ('79 '80 and '81 USAMOs complete)
- 11:09, 5 October 2012 (diff | hist) . . (+252) . . N 1981 USAMO Problems/Problem 5 (Created page with "==Problem== Show that for any positive real <math>x</math>, <math>[nx]\ge \sum_{1}^{n}\left(\frac{[kx]}{k}\right)</math> ==Solution== {{solution}} ==See Also== {{USAMO box|year=...")
- 11:08, 5 October 2012 (diff | hist) . . (+511) . . N 1981 USAMO Problems/Problem 4 (Created page with "==Problem== A convex polygon has <math>n</math> sides. Each vertex is joined to a point <math>P</math> not in the same plane. If <math>A, B, C</math> are adjacent vertices of the...")
- 11:08, 5 October 2012 (diff | hist) . . (-1) . . m 1981 USAMO Problems (→Problem 4)
- 11:08, 5 October 2012 (diff | hist) . . (+272) . . N 1981 USAMO Problems/Problem 3 (Created page with "==Problem== Show that for any triangle, <math>\frac{3\sqrt{3}}{2}\ge \sin(3A) + \sin(3B) + \sin (3C) \ge -2</math>. When does the equality hold? ==Solution== {{solution}} ==S...")
- 11:07, 5 October 2012 (diff | hist) . . (+567) . . N 1981 USAMO Problems/Problem 2 (Created page with "==Problem== What is the largest number of towns that can meet the following criteria. Each pair is directly linked by just one of air, bus or train. At least one pair is linked b...")
- 11:07, 5 October 2012 (diff | hist) . . (-2) . . m 1981 USAMO Problems (→Problem 2)
- 11:06, 5 October 2012 (diff | hist) . . (+305) . . N 1981 USAMO Problems/Problem 1 (Created page with "== Problem == Prove that if <math>n</math> is not a multiple of <math>3</math>, then the angle <math>\frac{\pi}{n}</math> can be trisected with ruler and compasses. == Solution...")
- 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)
- 15:25, 17 September 2012 (diff | hist) . . (+158) . . m 1978 USAMO Problems (→Problem 3)
- 15:25, 17 September 2012 (diff | hist) . . (+537) . . m 1978 USAMO Problems (→Problem 2)
- 15:25, 17 September 2012 (diff | hist) . . (+48) . . m 1978 USAMO Problems (→Problem 1)
- 15:24, 17 September 2012 (diff | hist) . . (+446) . . N 1978 USAMO Problems/Problem 5 (Created page with "== Problem == Nine mathematicians meet at an international conference and discover that among any three of them, at least two speak a common language. If each of the mathematicia...")
- 15:24, 17 September 2012 (diff | hist) . . (-2) . . m 1978 USAMO Problems/Problem 3
- 15:24, 17 September 2012 (diff | hist) . . (+363) . . N 1978 USAMO Problems/Problem 4 (Created page with "== Problem == (a) Prove that if the six dihedral (i.e. angles between pairs of faces) of a given tetrahedron are congruent, then the tetrahedron is regular. (b) Is a tetrahedron...")
- 15:23, 17 September 2012 (diff | hist) . . (+534) . . N 1978 USAMO Problems/Problem 3 (Created page with "== Problem == An integer <math>n</math> will be called ''good'' if we can write <math>n=a_1+a_2+\cdots+a_k</math>, where <math>a_1,a_2, \ldots, a_k</math> are positive integers...")
- 15:22, 17 September 2012 (diff | hist) . . (+978) . . N 1978 USAMO Problems/Problem 2 (Created page with "== Problem == <math>ABCD</math> and <math>A'B'C'D'</math> are square maps of the same region, drawn to different scales and superimposed as shown in the figure. Prove that there ...")
- 15:21, 17 September 2012 (diff | hist) . . (+326) . . N 1978 USAMO Problems/Problem 1 (Created page with "== Problem == Given that <math>a,b,c,d,e</math> are real numbers such that <math>a+b+c+d+e=8</math>, <math>a^2+b^2+c^2+d^2+e^2=16</math>. Determine the maximum value of <math>...")
- 15:20, 17 September 2012 (diff | hist) . . (+17) . . User talk:1=2 (1977 USAMO Complete!)
- 15:19, 17 September 2012 (diff | hist) . . (+1) . . m 1974 USAMO Problems/Problem 1 (→See Also)
- 15:19, 17 September 2012 (diff | hist) . . (+1) . . m 1974 USAMO Problems/Problem 5 (→See Also)
- 15:17, 17 September 2012 (diff | hist) . . (-47) . . m 1977 USAMO Problems/Problem 2 (→Problem)
- 15:16, 17 September 2012 (diff | hist) . . (-7) . . m 1977 USAMO Problems/Problem 5 (→Problem)
- 15:16, 17 September 2012 (diff | hist) . . (-62) . . m 1977 USAMO Problems/Problem 5 (→Problem)
- 15:15, 17 September 2012 (diff | hist) . . (-6) . . m 1977 USAMO Problems/Problem 5 (→Problem)
- 15:15, 17 September 2012 (diff | hist) . . (+636) . . N 1977 USAMO Problems/Problem 5 (Created page with "== Problem == If <math> a,b,c,d,e</math> are positive numbers bounded by <math> p</math> and <math> q</math>, i.e, if they lie in <math> [p,q], 0 < p</math>, prove that <cmath> (...")
- 15:14, 17 September 2012 (diff | hist) . . (+511) . . N 1977 USAMO Problems/Problem 4 (Created page with "== Problem == Prove that if the opposite sides of a skew (non-planar) quadrilateral are congruent, then the line joining the midpoints of the two diagonals is perpendicular to th...")
- 15:14, 17 September 2012 (diff | hist) . . (+1) . . 1977 USAMO Problems/Problem 3 (→See Also)
- 15:13, 17 September 2012 (diff | hist) . . (-2) . . m 1977 USAMO Problems/Problem 3
- 15:13, 17 September 2012 (diff | hist) . . (+358) . . N 1977 USAMO Problems/Problem 3 (Created page with "== Problem == If <math> a</math> and <math> b</math> are two of the roots of <math> x^4\plus{}x^3\minus{}1\equal{}0</math>, prove that <math> ab</math> is a root of <math> x^6\pl...")
- 15:13, 17 September 2012 (diff | hist) . . (+556) . . N 1977 USAMO Problems/Problem 2 (Created page with "== Problem == <math> ABC</math> and <math> A'B'C'</math> are two triangles in the same plane such that the lines <math> AA',BB',CC'</math> are mutually parallel. Let <math> [ABC]...")
- 15:12, 17 September 2012 (diff | hist) . . (+368) . . N 1977 USAMO Problems/Problem 1 (Creation!)
- 15:11, 17 September 2012 (diff | hist) . . (+17) . . User talk:1=2 (1976 USAMO Complete!)
- 15:10, 17 September 2012 (diff | hist) . . (+2) . . m 1976 USAMO Problems/Problem 5 (→Solution 2)
- 15:10, 17 September 2012 (diff | hist) . . (+2) . . m 1976 USAMO Problems/Problem 4 (→Solution)
- 15:10, 17 September 2012 (diff | hist) . . (+2) . . m 1976 USAMO Problems/Problem 3 (→Solution)
- 15:10, 17 September 2012 (diff | hist) . . (+2) . . m 1976 USAMO Problems/Problem 2 (→Solution)
- 15:10, 17 September 2012 (diff | hist) . . (+2) . . m 1976 USAMO Problems/Problem 1 (→Solution)
- 15:10, 17 September 2012 (diff | hist) . . (+28) . . m 1975 USAMO Problems/Problem 5 (→Solutions)
- 15:09, 17 September 2012 (diff | hist) . . (+10) . . m 1975 USAMO Problems/Problem 4 (→Solution)
- 15:09, 17 September 2012 (diff | hist) . . (+27) . . m 1975 USAMO Problems/Problem 3 (→Solution)
- 15:09, 17 September 2012 (diff | hist) . . (+28) . . m 1975 USAMO Problems/Problem 2 (→Solution 3)
- 15:09, 17 September 2012 (diff | hist) . . (+3) . . m 1974 USAMO Problems/Problem 5 (→Solution 3)
- 15:09, 17 September 2012 (diff | hist) . . (+28) . . m 1974 USAMO Problems/Problem 4 (→Solution)
- 15:09, 17 September 2012 (diff | hist) . . (+28) . . m 1974 USAMO Problems/Problem 3 (→Solution)
- 15:08, 17 September 2012 (diff | hist) . . (+3) . . m 1974 USAMO Problems/Problem 2 (→Solution)
- 15:08, 17 September 2012 (diff | hist) . . (+2) . . m 1974 USAMO Problems/Problem 1
- 15:08, 17 September 2012 (diff | hist) . . (+28) . . m 1973 USAMO Problems/Problem 5 (→Solution)
- 15:08, 17 September 2012 (diff | hist) . . (+28) . . m 1973 USAMO Problems/Problem 4 (→Solution)
- 15:08, 17 September 2012 (diff | hist) . . (+28) . . m 1973 USAMO Problems/Problem 3 (→Solution)
- 15:08, 17 September 2012 (diff | hist) . . (+28) . . m 1973 USAMO Problems/Problem 2 (→Solution)
- 15:07, 17 September 2012 (diff | hist) . . (+28) . . m 1973 USAMO Problems/Problem 1 (→Solution)
- 15:07, 17 September 2012 (diff | hist) . . (+27) . . m 1972 USAMO Problems/Problem 3 (→Solution)
- 15:07, 17 September 2012 (diff | hist) . . (+28) . . m 1972 USAMO Problems/Problem 2 (→Solution)
- 15:07, 17 September 2012 (diff | hist) . . (+26) . . m 1972 USAMO Problems/Problem 1 (→Solution)
- 15:07, 17 September 2012 (diff | hist) . . (+26) . . m 1976 USAMO Problems/Problem 1 (→Solution)
- 15:07, 17 September 2012 (diff | hist) . . (+26) . . m 1976 USAMO Problems/Problem 2 (→Solution)
- 15:06, 17 September 2012 (diff | hist) . . (+1) . . m 1976 USAMO Problems/Problem 3 (→Solution)
- 15:06, 17 September 2012 (diff | hist) . . (+26) . . m 1976 USAMO Problems/Problem 4 (→Solution)
- 15:06, 17 September 2012 (diff | hist) . . (-1) . . m 1976 USAMO Problems/Problem 5
- 15:06, 17 September 2012 (diff | hist) . . (0) . . m 1976 USAMO Problems/Problem 4 (→See also)
- 15:05, 17 September 2012 (diff | hist) . . (0) . . m 1976 USAMO Problems/Problem 3 (→See also)
- 15:05, 17 September 2012 (diff | hist) . . (0) . . m 1976 USAMO Problems/Problem 2 (→See also)
- 15:05, 17 September 2012 (diff | hist) . . (-17) . . m 1976 USAMO Problems/Problem 1
- 15:05, 17 September 2012 (diff | hist) . . (0) . . m 1976 USAMO (→See Also) (current)
- 15:04, 17 September 2012 (diff | hist) . . (0) . . m 1976 USAMO (→See Also)
- 15:04, 17 September 2012 (diff | hist) . . (-12) . . m 1976 USAMO (→See Also)
- 15:04, 17 September 2012 (diff | hist) . . (+17) . . User talk:1=2 (1975 USAMO Complete!)
- 15:04, 17 September 2012 (diff | hist) . . (-15) . . m 1975 USAMO Problems (→Problem 2)
- 15:04, 17 September 2012 (diff | hist) . . (0) . . m 1975 USAMO Problems (→Problem 2)
- 15:03, 17 September 2012 (diff | hist) . . (+1) . . m 1975 USAMO Problems/Problem 5
- 15:03, 17 September 2012 (diff | hist) . . (0) . . m 1975 USAMO Problems/Problem 4 (→See also)
- 15:03, 17 September 2012 (diff | hist) . . (0) . . m 1975 USAMO Problems/Problem 3 (→See also)
- 15:03, 17 September 2012 (diff | hist) . . (+1) . . m 1975 USAMO Problems/Problem 2
- 15:02, 17 September 2012 (diff | hist) . . (0) . . m 1975 USAMO Problems/Problem 1 (→See also)
- 15:02, 17 September 2012 (diff | hist) . . (-12) . . m 1975 USAMO (→See Also) (current)
- 15:00, 17 September 2012 (diff | hist) . . (+279) . . m User talk:1=2 (→USA(J)MO)
- 14:59, 17 September 2012 (diff | hist) . . (+17) . . User talk:1=2 (1974 USAMO complete)
- 14:58, 17 September 2012 (diff | hist) . . (-12) . . m 1972 USAMO (→See Also) (current)
- 14:58, 17 September 2012 (diff | hist) . . (-12) . . m 1973 USAMO (→See Also) (current)
- 14:58, 17 September 2012 (diff | hist) . . (-12) . . m 1974 USAMO (→See Also) (current)
- 14:58, 17 September 2012 (diff | hist) . . (-1) . . m 1974 USAMO Problems/Problem 5 (→Resources)
- 14:58, 17 September 2012 (diff | hist) . . (0) . . m 1974 USAMO Problems/Problem 4 (→See also)
- 14:58, 17 September 2012 (diff | hist) . . (0) . . m 1974 USAMO Problems/Problem 3 (→See also)
- 14:56, 17 September 2012 (diff | hist) . . (-14) . . m 1974 USAMO Problems/Problem 2 (→Mathlinks Discussions)
- 14:56, 17 September 2012 (diff | hist) . . (-1) . . m 1974 USAMO Problems/Problem 1 (→Resources)
- 14:55, 17 September 2012 (diff | hist) . . (-1) . . m 1994 USAMO Problems (→Resources)
- 14:54, 17 September 2012 (diff | hist) . . (-1) . . m 1995 USAMO Problems (→Resources)
- 14:54, 17 September 2012 (diff | hist) . . (+2,523) . . N 1996 USAMO Problems (Created page with "Problems of the 1996 USAMO. ==Problem 1== Prove that the average of the numbers <math>n \sin n^{\circ} \; (n = 2,4,6,\ldots,180)</math> is <math>\cot 1^{\ci...")
- 14:51, 17 September 2012 (diff | hist) . . (-120) . . m 1995 USAMO Problems (→Resources)
- 14:51, 17 September 2012 (diff | hist) . . (-126) . . m 1994 USAMO Problems (→Resources)
- 14:51, 17 September 2012 (diff | hist) . . (+82) . . m 1993 USAMO Problems
- 14:50, 17 September 2012 (diff | hist) . . (+83) . . m 1992 USAMO Problems
- 14:50, 17 September 2012 (diff | hist) . . (+49) . . m 1990 USAMO Problems (→See also)
- 14:49, 17 September 2012 (diff | hist) . . (+50) . . m 1989 USAMO Problems (→See also)
- 14:49, 17 September 2012 (diff | hist) . . (+83) . . m 1987 USAMO Problems
- 14:48, 17 September 2012 (diff | hist) . . (+2,993) . . N 1986 USAMO Problems (Creation!)
- 14:46, 17 September 2012 (diff | hist) . . (-325) . . m 1985 USAMO Problems (→Problem 5)
- 14:45, 17 September 2012 (diff | hist) . . (0) . . m 1985 USAMO Problems (→Problem 5)
- 14:44, 17 September 2012 (diff | hist) . . (+1,680) . . N 1985 USAMO Problems (Creation!)
- 14:42, 17 September 2012 (diff | hist) . . (+11) . . m 1984 USAMO Problems (→Problem 5)
- 14:42, 17 September 2012 (diff | hist) . . (+2,054) . . N 1984 USAMO Problems (Creation!)
- 14:40, 17 September 2012 (diff | hist) . . (-2) . . m 1983 USAMO Problems
- 14:40, 17 September 2012 (diff | hist) . . (+1,739) . . N 1983 USAMO Problems (Creation!)
- 14:38, 17 September 2012 (diff | hist) . . (0) . . m 1981 USAMO Problems
- 14:38, 17 September 2012 (diff | hist) . . (+230) . . m 1982 USAMO Problems
- 14:38, 17 September 2012 (diff | hist) . . (+230) . . m 1981 USAMO Problems
- 14:35, 17 September 2012 (diff | hist) . . (+83) . . m 1982 USAMO Problems
- 14:35, 17 September 2012 (diff | hist) . . (+83) . . m 1981 USAMO Problems
- 14:34, 17 September 2012 (diff | hist) . . (-35) . . m 1973 USAMO Problems (→See Also)
- 14:34, 17 September 2012 (diff | hist) . . (-35) . . m 1974 USAMO Problems (→See Also)
- 14:34, 17 September 2012 (diff | hist) . . (-35) . . m 1975 USAMO Problems (→See Also)
- 14:34, 17 September 2012 (diff | hist) . . (-35) . . m 1976 USAMO Problems (→See Also)
- 14:33, 17 September 2012 (diff | hist) . . (-35) . . m 1977 USAMO Problems (→See Also)
- 14:33, 17 September 2012 (diff | hist) . . (-35) . . m 1979 USAMO Problems (→See Also)
- 14:33, 17 September 2012 (diff | hist) . . (+2) . . m 1979 USAMO Problems (→See also)
- 14:33, 17 September 2012 (diff | hist) . . (+402) . . 1978 USAMO Problems (prettified it)
- 14:31, 17 September 2012 (diff | hist) . . (+2) . . m 1977 USAMO Problems (→See also)
- 14:31, 17 September 2012 (diff | hist) . . (+2) . . m 1976 USAMO Problems (→See also)
- 14:30, 17 September 2012 (diff | hist) . . (+2) . . m 1975 USAMO Problems (→See also)
- 14:29, 17 September 2012 (diff | hist) . . (+51) . . m 1996 USAMO
- 12:50, 17 September 2012 (diff | hist) . . (-84) . . m Template:IMO box
- 12:50, 17 September 2012 (diff | hist) . . (-86) . . m Template:USAMO newbox
- 12:49, 17 September 2012 (diff | hist) . . (-86) . . m Template:USAMO box
- 12:49, 17 September 2012 (diff | hist) . . (-86) . . m Template:AHSME box
- 12:48, 17 September 2012 (diff | hist) . . (-86) . . m Template:AHSME 35p box
- 12:47, 17 September 2012 (diff | hist) . . (-86) . . m Template:AHSME 40p box
- 12:47, 17 September 2012 (diff | hist) . . (-86) . . m Template:AHSME 50p box
- 12:45, 17 September 2012 (diff | hist) . . (+105) . . Template:AIME box (added link to problems and soultions)
- 12:43, 17 September 2012 (diff | hist) . . (+294) . . Template:AHSME 50p box (added links)
- 12:43, 17 September 2012 (diff | hist) . . (+295) . . Template:AHSME box (added links and stuff)
- 12:42, 17 September 2012 (diff | hist) . . (0) . . m Template:AHSME 35p box
- 12:41, 17 September 2012 (diff | hist) . . (0) . . m Template:AHSME 40p box
- 12:41, 17 September 2012 (diff | hist) . . (+293) . . Template:AHSME 40p box (added resources and problemssoltuions to stf)
- 12:39, 17 September 2012 (diff | hist) . . (+294) . . Template:AHSME 35p box (added links to resources page, and link to problsm and solutions)
- 12:35, 17 September 2012 (diff | hist) . . (+1,218) . . 2012 USAMO Problems/Problem 6 (solution added.)
- 12:07, 17 September 2012 (diff | hist) . . (0) . . m 2012 USAMO Problems/Problem 6 (→See also)
- 12:06, 17 September 2012 (diff | hist) . . (+39) . . m 2012 USAMO Problems/Problem 6 (→See also)
- 12:06, 17 September 2012 (diff | hist) . . (+40) . . m 2012 USAMO Problems/Problem 5 (→See also)
- 12:06, 17 September 2012 (diff | hist) . . (+39) . . m 2012 USAMO Problems/Problem 4 (→See also)
- 12:06, 17 September 2012 (diff | hist) . . (+46) . . m 2012 USAMO Problems/Problem 3 (→See Also)
- 12:06, 17 September 2012 (diff | hist) . . (+45) . . m 2012 USAMO Problems/Problem 2 (→See Also)
- 12:05, 17 September 2012 (diff | hist) . . (+40) . . m 2012 USAMO Problems/Problem 1 (→See also)
- 12:04, 17 September 2012 (diff | hist) . . (+18) . . m 2011 USAMO Problems/Problem 1
- 12:04, 17 September 2012 (diff | hist) . . (+39) . . m 2011 USAMO Problems/Problem 1 (→See also)
- 12:03, 17 September 2012 (diff | hist) . . (+39) . . m 2003 USAMO Problems/Problem 5 (→Resources)
- 12:03, 17 September 2012 (diff | hist) . . (+39) . . m 2001 USAMO Problems/Problem 3 (→See also)
- 12:02, 17 September 2012 (diff | hist) . . (+39) . . m 2001 IMO Problems/Problem 2 (→See also)
- 12:02, 17 September 2012 (diff | hist) . . (+39) . . m 2000 USAMO Problems/Problem 6 (→See Also)
- 12:02, 17 September 2012 (diff | hist) . . (+39) . . m 1999 USAMO Problems/Problem 4 (→See Also)
- 12:02, 17 September 2012 (diff | hist) . . (+39) . . m 1997 USAMO Problems/Problem 5 (→See Also)
- 12:02, 17 September 2012 (diff | hist) . . (+40) . . m 1994 USAMO Problems/Problem 4 (→See Also)
- 12:02, 17 September 2012 (diff | hist) . . (+39) . . m 1993 USAMO Problems/Problem 5 (→See Also)
- 12:01, 17 September 2012 (diff | hist) . . (+39) . . m 1983 USAMO Problems/Problem 2 (→See Also)
- 12:01, 17 September 2012 (diff | hist) . . (+45) . . m 1974 USAMO Problems/Problem 4 (→See also)
- 12:01, 17 September 2012 (diff | hist) . . (+39) . . m 1974 USAMO Problems/Problem 2 (→Mathlinks Discussions)
- 12:00, 17 September 2012 (diff | hist) . . (+39) . . m 1972 USAMO Problems/Problem 4
- 12:00, 17 September 2012 (diff | hist) . . (+42) . . m 1960 IMO Problems/Problem 2
- 11:59, 17 September 2012 (diff | hist) . . (0) . . m Template:IMO box
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