User contributions
(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)
- 00:16, 19 November 2023 (diff | hist) . . (+53) . . 2009 IMO Problems/Problem 2
- 00:16, 19 November 2023 (diff | hist) . . (+66) . . 2009 IMO Problems/Problem 1 (current)
- 00:15, 19 November 2023 (diff | hist) . . (+681) . . 2008 IMO Problems/Problem 6 (current)
- 00:10, 19 November 2023 (diff | hist) . . (+53) . . 2008 IMO Problems/Problem 5 (current)
- 00:10, 19 November 2023 (diff | hist) . . (+53) . . 2008 IMO Problems/Problem 4 (current)
- 00:09, 19 November 2023 (diff | hist) . . (+53) . . 2008 IMO Problems/Problem 3 (current)
- 00:09, 19 November 2023 (diff | hist) . . (+53) . . 2008 IMO Problems/Problem 2 (current)
- 00:08, 19 November 2023 (diff | hist) . . (+66) . . 2008 IMO Problems/Problem 1 (current)
- 00:06, 19 November 2023 (diff | hist) . . (+3) . . 2007 IMO Problems/Problem 3 (→Solution) (current)
- 00:04, 19 November 2023 (diff | hist) . . (+91) . . 2006 IMO Problems/Problem 6
- 00:03, 19 November 2023 (diff | hist) . . (+53) . . 2006 IMO Problems/Problem 4 (current)
- 00:03, 19 November 2023 (diff | hist) . . (+64) . . 2006 IMO Problems/Problem 3
- 00:02, 19 November 2023 (diff | hist) . . (+54) . . 2006 IMO Problems/Problem 2 (current)
- 00:02, 19 November 2023 (diff | hist) . . (0) . . 2006 IMO Problems/Problem 1 (→See Also) (current)
- 00:02, 19 November 2023 (diff | hist) . . (+67) . . 2006 IMO Problems/Problem 1
- 00:00, 19 November 2023 (diff | hist) . . (+104) . . 2005 IMO Problems/Problem 6
- 00:00, 19 November 2023 (diff | hist) . . (+93) . . 2005 IMO Problems/Problem 5
- 23:59, 18 November 2023 (diff | hist) . . (+66) . . 2005 IMO Problems/Problem 4
- 23:58, 18 November 2023 (diff | hist) . . (+93) . . 2005 IMO Problems/Problem 3 (current)
- 23:57, 18 November 2023 (diff | hist) . . (0) . . 2005 IMO Problems/Problem 2
- 23:57, 18 November 2023 (diff | hist) . . (+93) . . 2005 IMO Problems/Problem 2
- 23:56, 18 November 2023 (diff | hist) . . (+107) . . 2005 IMO Problems/Problem 1 (current)
- 23:55, 18 November 2023 (diff | hist) . . (+77) . . 2004 IMO Problems/Problem 6 (current)
- 23:54, 18 November 2023 (diff | hist) . . (+93) . . 2004 IMO Problems/Problem 5
- 23:54, 18 November 2023 (diff | hist) . . (+39) . . 2004 IMO Problems/Problem 4 (→See also) (current)
- 23:53, 18 November 2023 (diff | hist) . . (+80) . . 2004 IMO Problems/Problem 3 (current)
- 23:52, 18 November 2023 (diff | hist) . . (+39) . . 2004 IMO Problems/Problem 2 (→See also) (current)
- 23:51, 18 November 2023 (diff | hist) . . (+52) . . 2004 IMO Problems/Problem 1 (→See also) (current)
- 23:49, 18 November 2023 (diff | hist) . . (+77) . . 2003 IMO Problems/Problem 6 (→Solution)
- 23:48, 18 November 2023 (diff | hist) . . (+437) . . N 2003 IMO Problems/Problem 5 (Created page with "==Problem== Let <math>n</math> be a positive integer and let <math>x_1 \le x_2 \le \cdots \le x_n</math> be real numbers. Prove that <cmath>\left( \sum_{i=1}^{n}\sum_{j=i}^{...")
- 23:44, 18 November 2023 (diff | hist) . . (+507) . . N 2003 IMO Problems/Problem 4 (Created page with "==Problem== Let <math>ABCD</math> be a cyclic quadrilateral. Let <math>P</math>, <math>Q</math>, and <math>R</math> be the feet of perpendiculars from <math>D</math> to lines...")
- 23:41, 18 November 2023 (diff | hist) . . (0) . . 2003 IMO Problems/Problem 3 (→See Also) (current)
- 23:40, 18 November 2023 (diff | hist) . . (+304) . . N 2003 IMO Problems/Problem 3 (Created page with "==Problem== Each pair of opposite sides of convex hexagon has the property that the distance between their midpoints is <math>\frac{\sqrt{3}}{2}</math> times the sum of their...")
- 23:38, 18 November 2023 (diff | hist) . . (+409) . . N 2002 IMO Problems/Problem 6 (Created page with "==Problem== Let <math>n \ge 3</math> be a positive integer. Let <math>C_1,C_2,...,C_n</math> be unit circles in the plane, with centers <math>O_1,O_2,...,O_n</math> respecti...") (current)
- 23:34, 18 November 2023 (diff | hist) . . (+256) . . N 2002 IMO Problems/Problem 5 (Created page with "==Problem== Find all functions <math>f:\Bbb{R}\to \Bbb{R}</math> such that <cmath>(f(x)+f(z))(f(y)+f(t))=f(xy-zt)+f(xt+yz)</cmath> for all real numbers <math>x,y,z,t</math>...")
- 23:32, 18 November 2023 (diff | hist) . . (+68) . . 2002 IMO Problems/Problem 4
- 23:31, 18 November 2023 (diff | hist) . . (+296) . . N 2002 IMO Problems/Problem 3 (Created page with "==Problem== Find all pairs of positive integers <math>m,n \ge 3</math> for which here exist infinitely many positive integers <math>a</math> such that <cmath>\frac{a^m+a-1}...") (current)
- 23:28, 18 November 2023 (diff | hist) . . (-1) . . 2002 IMO Problems/Problem 2 (→Solution)
- 23:28, 18 November 2023 (diff | hist) . . (+67) . . 2002 IMO Problems/Problem 2
- 23:26, 18 November 2023 (diff | hist) . . (+107) . . 2002 IMO Problems/Problem 1
- 23:25, 18 November 2023 (diff | hist) . . (-8) . . 2002 IMO Problems/Problem 1
- 23:23, 18 November 2023 (diff | hist) . . (+11) . . 2001 IMO Problems/Problem 6 (→See also) (current)
- 23:21, 18 November 2023 (diff | hist) . . (+750) . . N 2000 IMO Problems/Problem 6 (Created page with "==Problem== Let <math>\overline{AH_1}</math>, <math>\overline{BH_2}</math>, and <math>\overline{CH_3}</math> be the altitudes of an acute triangle <math>ABC</math>. The inci...") (current)
- 23:16, 18 November 2023 (diff | hist) . . (0) . . 2000 IMO Problems/Problem 3 (→See Also)
- 23:16, 18 November 2023 (diff | hist) . . (+1) . . 2000 IMO Problems/Problem 2 (→Problem)
- 23:16, 18 November 2023 (diff | hist) . . (+65) . . 2000 IMO Problems/Problem 2
- 23:15, 18 November 2023 (diff | hist) . . (+1) . . 2000 IMO Problems/Problem 2 (→Problem)
- 23:14, 18 November 2023 (diff | hist) . . (+223) . . N 2000 IMO Problems/Problem 2 (Created page with "==Problem== Let <math>a, b, c</math> be positive real numbers with <math>abc=1</math>. Show that <cmath>\left(a-a+\frac{1}{b}\right}</cmath> ==Solution== {{solution}} ==S...")
- 23:12, 18 November 2023 (diff | hist) . . (-2) . . 2000 IMO Problems/Problem 3 (→Problem)
- 23:12, 18 November 2023 (diff | hist) . . (-1) . . 2000 IMO Problems/Problem 3 (→Problem)
(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)
