(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)

• 12:13, 29 September 2008 (diff | hist) . . (0)‎ . . m 2006 Alabama ARML TST Problems/Problem 11 ‎ (→‎Solution)
• 12:13, 29 September 2008 (diff | hist) . . (+543)‎ . . N 2006 Alabama ARML TST Problems/Problem 11 ‎ (New page: ==Problem== The integer <math>5^{2006}</math> has 1403 digits, and 1 is its first digit (farthest to the left). For how many integers <math>0\leq k \leq 2005</math> does <math>5^k</math> b...)
• 12:06, 29 September 2008 (diff | hist) . . (0)‎ . . m 1995 AHSME Problems/Problem 17 ‎ (1955 AHSME Problems/Problem 17 moved to 1995 AHSME Problems/Problem 17)
• 12:05, 29 September 2008 (diff | hist) . . (+26)‎ . . m 1995 AHSME Problems/Problem 17 ‎ (→‎Solution)
• 12:05, 29 September 2008 (diff | hist) . . (+42)‎ . . 1995 AHSME Problems/Problem 17 ‎
• 12:05, 29 September 2008 (diff | hist) . . (+794)‎ . . N 1995 AHSME Problems/Problem 17 ‎ (New page: ==Problem== Given regular pentagon <math>ABCDE</math>, a circle can be drawn that is tangent to <math>\overline{DC}</math> at <math>D</math> and to <math>\overline{AB}</math> at <math>A</m...)
• 12:00, 29 September 2008 (diff | hist) . . (+43)‎ . . 1995 AHSME Problems/Problem 16 ‎ (→‎See also)
• 12:00, 29 September 2008 (diff | hist) . . (+1,030)‎ . . N 1995 AHSME Problems/Problem 16 ‎ (New page: ==Problem== Anita attends a baseball game in Atlanta and estimates that there are 50,000 fans in attendance. Bob attends a baseball game in Boston and estimates that there are 60,000 fans ...)
• 11:57, 29 September 2008 (diff | hist) . . (+93)‎ . . 1995 AHSME Problems/Problem 15 ‎ (→‎See also)
• 11:57, 29 September 2008 (diff | hist) . . (+634)‎ . . N 1995 AHSME Problems/Problem 15 ‎ (New page: ==Problem== Five points on a circle are numbered 1,2,3,4, and 5 in clockwise order. A bug jumps in a clockwise direction from one point to another around the circle; if it is on an odd-num...)
• 14:50, 20 September 2008 (diff | hist) . . (+1,398)‎ . . 2005 Canadian MO Problems/Problem 2 ‎ (current)
• 11:33, 18 September 2008 (diff | hist) . . (0)‎ . . User:1=2 ‎
• 11:32, 18 September 2008 (diff | hist) . . (0)‎ . . User:1=2 ‎
• 11:32, 18 September 2008 (diff | hist) . . (0)‎ . . User:1=2 ‎ (→‎To Do)
• 11:30, 18 September 2008 (diff | hist) . . (-2)‎ . . 2005 PMWC Problems/Problem T7 ‎ (→‎Solution)
• 11:30, 18 September 2008 (diff | hist) . . (-1)‎ . . m 2005 PMWC Problems/Problem I3 ‎ (→‎See also) (current)
• 11:30, 18 September 2008 (diff | hist) . . (0)‎ . . 2005 PMWC Problems/Problem T7 ‎ (→‎See also)
• 11:30, 18 September 2008 (diff | hist) . . (+914)‎ . . N 2005 PMWC Problems/Problem T7 ‎ (New page: ==Problem== Skipper’s doghouse has a regular hexagonal base that measures one metre on each side. Skipper is tethered to a 2-metre rope which is fixed to a vertex. What is the area of th...)
• 11:04, 18 September 2008 (diff | hist) . . (+42)‎ . . 2005 PMWC Problems/Problem I3 ‎ (→‎See also)
• 11:01, 18 September 2008 (diff | hist) . . (+6)‎ . . 2005 PMWC Problems/Problem I3 ‎ (→‎Solution)
• 10:22, 18 September 2008 (diff | hist) . . (+1,459)‎ . . N 2005 PMWC Problems/Problem I3 ‎ (New page: ==Problem== Let <math>x</math> be a fraction between <math>\frac{35}{36}</math> and <math>\frac{91}{183}</math>. If the denominator of <math>x</math> is <math>455</math> and the numerator...)
• 09:58, 18 September 2008 (diff | hist) . . (-4)‎ . . m AoPS Wiki:AoPS Community Awards ‎
• 19:58, 17 September 2008 (diff | hist) . . (+266)‎ . . N Talk:Collatz Problem ‎ (New page: From Cauchy Induction, f(1) and f(2) both have a 1 in there somewhere, and we can easily prove that if it's true for n, then it's true for 2n. Now we just need to prove that if it's tr...)
• 14:50, 15 September 2008 (diff | hist) . . (+333)‎ . . N Aczel's Inequality ‎ (New page: '''Aczel's Inequality''' states that if <math>a_1^2>a_2^2+\cdots +a_n^2</math>, then <center><math>(a_1b_1-a_2b_2-\cdots -a_nb_n)^2\geq (a_1^2-a_2^2-\cdots -a_n^2)(b_1^2-b_2^2-\cdots -b_n...)
• 14:34, 15 September 2008 (diff | hist) . . (+4)‎ . . m Proofs of AM-GM ‎ (→‎Proof by Cauchy Induction)
• 14:32, 15 September 2008 (diff | hist) . . (+2)‎ . . m Cauchy Induction ‎
• 14:31, 15 September 2008 (diff | hist) . . (+6)‎ . . m Cauchy-Schwarz Inequality ‎ (Augustin Louis Cauchy had a middle name, you see...)
• 14:30, 15 September 2008 (diff | hist) . . (+24)‎ . . Cauchy Induction ‎
• 14:30, 15 September 2008 (diff | hist) . . (+565)‎ . . N Cauchy Induction ‎ (New page: '''Cauchy Induction''' is a beautiful method of Proof by Induction discovered by Augustin Louis Cauchy. ==Definition== For a given statement <math>s</math> over the positive integers ...)
• 10:17, 15 September 2008 (diff | hist) . . (+54)‎ . . 2007 Alabama ARML TST Problems/Problem 7 ‎ (→‎See also)
• 10:16, 15 September 2008 (diff | hist) . . (+11)‎ . . m 2007 Alabama ARML TST Problems/Problem 7 ‎
• 10:16, 15 September 2008 (diff | hist) . . (+872)‎ . . N 2007 Alabama ARML TST Problems/Problem 7 ‎ (New page: =Problem== Find the number of distinct integers in the list <cmath>\left\lfloor \dfrac{1^2}{2007}\right\rfloor , \left\lfloor \dfrac{2^2}{2007}\right\rfloor , \left\lfloor \dfrac{3^2}{200...)
• 22:28, 14 September 2008 (diff | hist) . . (+1,590)‎ . . N 2008 iTest Problems ‎ (Phew I need to go to bed now...)
• 22:24, 14 September 2008 (diff | hist) . . (+4,907)‎ . . N 2008 iTest ‎ (And there we go.)
• 22:20, 14 September 2008 (diff | hist) . . (+16)‎ . . ITest Problems and Solutions ‎
• 13:47, 12 September 2008 (diff | hist) . . (+6)‎ . . Majorization ‎ (→‎See Also)
• 13:42, 12 September 2008 (diff | hist) . . (+3)‎ . . m Karamata's Inequality ‎
• 13:41, 12 September 2008 (diff | hist) . . (+321)‎ . . N Karamata's Inequality ‎ (New page: '''Karamata's Inequality''' states that if <math>(x_i)</math> majores <math>(y_i)</math> and <math>f</math> is a convex function, then <center><math>\sum_{i=1}^{n}f(x...)
• 13:17, 10 September 2008 (diff | hist) . . (+53)‎ . . Integral ‎ (a left Riemann sum, credit goes to fedja)
• 12:36, 10 September 2008 (diff | hist) . . (0)‎ . . 1969 Canadian MO Problems/Problem 6 ‎ (→‎Solution)
• 12:35, 10 September 2008 (diff | hist) . . (0)‎ . . m 1969 Canadian MO Problems/Problem 5 ‎ (→‎Solution) (current)
• 12:24, 10 September 2008 (diff | hist) . . (+108)‎ . . N Talk:1977 Canadian MO Problems/Problem 2 ‎ (New page: Please clarify what <math>B</math> and <math>X</math> are. --~~~~) (current)
• 07:58, 9 September 2008 (diff | hist) . . (+4)‎ . . Millennium Problems ‎ (grammar)
• 21:48, 1 September 2008 (diff | hist) . . (+66)‎ . . 1995 IMO Problems/Problem 1 ‎
• 17:00, 31 August 2008 (diff | hist) . . (+1)‎ . . m Triangle ‎ (→‎Scalene)
• 16:59, 31 August 2008 (diff | hist) . . (+308)‎ . . Base Angle Theorem ‎
• 16:52, 31 August 2008 (diff | hist) . . (+1)‎ . . m Base Angle Theorem ‎
• 16:52, 31 August 2008 (diff | hist) . . (0)‎ . . m Base Angle Theorem ‎ (Hinge theorem moved to Hinge Theorem: oops)
• 16:52, 31 August 2008 (diff | hist) . . (+27)‎ . . N Hinge theorem ‎ (Hinge theorem moved to Hinge Theorem: oops)
• 16:52, 31 August 2008 (diff | hist) . . (+553)‎ . . N Base Angle Theorem ‎ (New page: The ''Hinge theorem''' states that in an isosceles triangle, the measures of the angles opposite the equal-measuring sides are equal. ==Proof== Since the triangle only has three sides...)

(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)