User contributions
- 15:53, 23 March 2015 (diff | hist) . . (+187) . . N 1998 IMO Problems/Problem 6 (Created page with "Consider all functions f from the set N of all positive integers into itself sat- isfying f (t 2 f (s)) = s(f (t)) 2 for all s and t in N . Determine the least possible value ...")
- 15:53, 23 March 2015 (diff | hist) . . (+242) . . N 1998 IMO Problems/Problem 5 (Created page with "Let I be the incenter of triangle ABC. Let the incircle of ABC touch the sides BC, CA, and AB at K, L, and M , respectively. The line through B parallel to M K meets the lines...")
- 15:52, 23 March 2015 (diff | hist) . . (+93) . . N 1998 IMO Problems/Problem 4 (Created page with "Determine all pairs (a, b) of positive integers such that ab 2 + b + 7 divides a 2 b + a + b.")
- 15:52, 23 March 2015 (diff | hist) . . (+181) . . N 1998 IMO Problems/Problem 3 (Created page with "For any positive integer n, let d(n) denote the number of positive divisors of n (including 1 and n itself). Determine all positive integers k such that d(n 2 )/d(n) = k for s...")
- 15:51, 23 March 2015 (diff | hist) . . (+294) . . N 1998 IMO Problems/Problem 2 (Created page with "In a competition, there are a contestants and b judges, where b ≥ 3 is an odd integer. Each judge rates each contestant as either “pass” or “fail”. Suppose k is a nu...")
- 15:48, 23 March 2015 (diff | hist) . . (+323) . . N 1998 IMO Problems/Problem 1 (Created page with "In the convex quadrilateral ABCD, the diagonals AC and BD are perpendicular and the opposite sides AB and DC are not parallel. Suppose that the point P , where the perpendicul...")
- 09:37, 5 December 2011 (diff | hist) . . (+154) . . KGS math club (clean-up. Thanks for nice contributions!)
- 14:11, 11 August 2010 (diff | hist) . . (+296) . . KGS math club/solution 10 1 (current)
- 14:02, 11 August 2010 (diff | hist) . . (0) . . KGS math club/solution 10 1
- 14:00, 11 August 2010 (diff | hist) . . (+837) . . N KGS math club/solution 10 1 (Created page with 'The coefficient of the tangent can be found from implicit derivative formula: <math>dy / dx = - (dz / dx) / (dz / dy) = - (2x + y) / (2y + x) </math> where <math> z = x^2 + y^2 +…')
- 13:51, 11 August 2010 (diff | hist) . . (+259) . . KGS math club (added a problem)
- 17:46, 14 April 2010 (diff | hist) . . (+175) . . N Talk:KGS math club (Created page with 'Hi, if anyone finds a way to make this editable to anyone including non-registered users, please do! (or let me know) --~~~~') (current)
- 14:05, 19 August 2009 (diff | hist) . . (0) . . KGS math club/hints 1 1 (current)
- 14:04, 19 August 2009 (diff | hist) . . (+3) . . KGS math club (added 2 problems)
- 14:04, 19 August 2009 (diff | hist) . . (+53) . . N KGS math club/hints 9 1 (added hint) (current)
- 14:03, 19 August 2009 (diff | hist) . . (+691) . . KGS math club (added 2 problems)
- 05:33, 18 July 2009 (diff | hist) . . (+10) . . KGS math club
- 05:33, 18 July 2009 (diff | hist) . . (+277) . . KGS math club
- 05:27, 18 July 2009 (diff | hist) . . (+587) . . KGS math club/solution 6 1 (→Solution for rational weigths) (current)
- 05:21, 18 July 2009 (diff | hist) . . (+3) . . KGS math club/solution 6 1 (→Solution for rational weigths)
- 05:20, 18 July 2009 (diff | hist) . . (+55) . . KGS math club/solution 6 1 (→Solution for rational weigths)
- 05:16, 18 July 2009 (diff | hist) . . (+115) . . KGS math club
- 07:40, 27 July 2008 (diff | hist) . . (+3,018) . . N KGS math club/solution 6 1 (proof)
- 06:30, 27 July 2008 (diff | hist) . . (+586) . . KGS math club (addition)
- 14:06, 6 July 2008 (diff | hist) . . (+21) . . m KGS math club (fixd again)
- 14:03, 6 July 2008 (diff | hist) . . (+12) . . m KGS math club (whoops, fixed)
- 14:02, 6 July 2008 (diff | hist) . . (+655) . . KGS math club
- 12:34, 1 July 2008 (diff | hist) . . (+382) . . KGS math club
- 12:33, 1 July 2008 (diff | hist) . . (+60) . . m KGS math club/solution 3 1 (prettyprinting) (current)
- 14:37, 30 June 2008 (diff | hist) . . (+681) . . KGS math club
- 12:26, 28 June 2008 (diff | hist) . . (+13) . . m KGS math club/solution 1 1 (current)
- 12:25, 28 June 2008 (diff | hist) . . (+539) . . N KGS math club/solution 1 2 (New page: Another solution: Colour every second item in the sequence blue and the rest red. Sum up the blue items and the red; which one is bigger, start playing that colour. Always take the item o...) (current)
- 12:25, 28 June 2008 (diff | hist) . . (+2,940) . . N KGS math club/solution 1 1 (New page: Problem (by amkach): Consider the two player game that begins with an even length fixed random sequence of positive integers. Each player, in turn, removes either the first or last of th...)
- 12:24, 28 June 2008 (diff | hist) . . (+1,278) . . N KGS math club/hints 1 1 (New page: <pre> Problem (by amkach): Consider the two player game that begins with an even length fixed random sequence of positive integers. Each player, in turn, removes either the first or last...)
- 12:24, 28 June 2008 (diff | hist) . . (+115) . . KGS math club
- 21:55, 20 June 2008 (diff | hist) . . (-8) . . KGS math club (clarification: removed the word "ordered")
- 20:34, 20 June 2008 (diff | hist) . . (+9) . . KGS math club
- 20:32, 20 June 2008 (diff | hist) . . (+1,473) . . N KGS math club/solution 2 1 (solution to a kgs problem)
- 20:29, 20 June 2008 (diff | hist) . . (+1,749) . . N KGS math club (created a page for KGS math club problems & solutions)
