User contributions
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- 12:35, 14 February 2021 (diff | hist) . . (+1) . . 2021 AMC 12A Problems/Problem 16 (→Solution 3 (answer choices))
- 12:34, 14 February 2021 (diff | hist) . . (0) . . 2021 AMC 12A Problems/Problem 16 (→Solution 3 (answer choices))
- 12:33, 14 February 2021 (diff | hist) . . (+688) . . 2021 AMC 12A Problems/Problem 16 (→Solution 2)
- 12:27, 14 February 2021 (diff | hist) . . (+132) . . 2021 AMC 12A Problems/Problem 16 (→Problem)
- 08:44, 14 February 2021 (diff | hist) . . (+172) . . 2021 AMC 12B Problems/Problem 6 (→Solution 2 (ratios))
- 08:42, 14 February 2021 (diff | hist) . . (+375) . . 2021 AMC 12B Problems/Problem 6 (→Solution)
- 08:35, 14 February 2021 (diff | hist) . . (+47) . . 2021 AMC 12B Problems/Problem 16 (→See Also)
- 08:35, 14 February 2021 (diff | hist) . . (+47) . . 2021 AMC 12B Problems/Problem 12 (→See Also)
- 18:04, 11 February 2021 (diff | hist) . . (+592) . . 2021 AMC 10B Problems/Problem 1 (→Solution)
- 16:42, 11 February 2021 (diff | hist) . . (-9) . . 2021 AMC 10B Problems/Problem 5 (→See Also)
- 16:41, 11 February 2021 (diff | hist) . . (+8) . . 2021 AMC 10B Problems/Problem 5
- 16:41, 11 February 2021 (diff | hist) . . (+78) . . 2021 AMC 10B Problems/Problem 5
- 16:39, 11 February 2021 (diff | hist) . . (+978) . . 2021 AMC 10B Problems/Problem 5
- 16:34, 11 February 2021 (diff | hist) . . (+11) . . 2021 AMC 10B Problems/Problem 3 (→Solution 1)
- 16:19, 11 February 2021 (diff | hist) . . (+367) . . 2021 AMC 10B Problems/Problem 4
- 16:16, 11 February 2021 (diff | hist) . . (+717) . . 2021 AMC 10B Problems/Problem 3
- 16:10, 11 February 2021 (diff | hist) . . (+399) . . 2021 AMC 10B Problems/Problem 3
- 16:09, 11 February 2021 (diff | hist) . . (0) . . 2021 AMC 10B Problems/Problem 2
- 16:08, 11 February 2021 (diff | hist) . . (+141) . . 2021 AMC 10B Problems/Problem 2
- 16:07, 11 February 2021 (diff | hist) . . (+107) . . 2021 AMC 10B Problems/Problem 1
- 16:04, 11 February 2021 (diff | hist) . . (+26) . . 2021 AMC 10B Problems/Problem 16
- 16:01, 11 February 2021 (diff | hist) . . (+365) . . 2021 AMC 10B Problems/Problem 16
- 15:49, 11 February 2021 (diff | hist) . . (+38) . . m 2021 AMC 10B Problems/Problem 19 (Title change)
- 15:48, 11 February 2021 (diff | hist) . . (+2,056) . . 2021 AMC 10B Problems/Problem 19 (→Solution)
- 21:19, 17 January 2021 (diff | hist) . . (+1,276) . . 2020 AMC 10A Problems/Problem 20 (→Solution 6 (basic vectors/coordinates))
- 20:56, 17 January 2021 (diff | hist) . . (+395) . . 2020 AMC 10A Problems/Problem 20
- 10:15, 10 January 2021 (diff | hist) . . (+2,421) . . 1984 AIME Problems/Problem 9 (→Solution 4 (coord/vector bash))
- 09:59, 10 January 2021 (diff | hist) . . (+37) . . 1984 AIME Problems/Problem 9 (→Solution 3 (Sketchy))
- 21:00, 27 December 2020 (diff | hist) . . (+132) . . N 2021 AIME II Answer Key (Created page with "The answer key will not be available until after the <math>2021</math> AIME II is released on Thursday, March <math>25, 2021</math>.")
- 20:59, 27 December 2020 (diff | hist) . . (+126) . . N 2021 AIME II Problems/Problem 7 (Created page with "These problems will not be available until the <math>2021</math> AIME II is released on Thursday, March <math>25, 2021</math>.")
- 11:27, 23 August 2020 (diff | hist) . . (+388) . . N 2004 IMO Problems/Problem 5 (Created page with "In a convex quadrilateral <math>ABCD</math>, the diagonal <math>BD</math> bisects neither the angle <math>ABC</math> nor the angle <math>CDA</math>. The point <math>P</math> l...")
- 11:26, 23 August 2020 (diff | hist) . . (+203) . . N 2004 IMO Problems/Problem 6 (Created page with "We call a positive integer alternating if every two consecutive digits in its decimal representation are of different parity. Find all positive integers <math>n</math> which h...")
- 11:25, 23 August 2020 (diff | hist) . . (+259) . . N 2004 IMO Problems/Problem 3 (Created page with "Define a “hook” to be a figure made up of six unit squares as shown in this picture: http://bit.ly/IMO2004P1, or any of the figures obtained by applying rotations and refl...")
- 11:21, 23 August 2020 (diff | hist) . . (+638) . . N 2005 IMO Problems/Problem 5 (Created page with "Let <math>ABCD</math> be a fixed convex quadrilateral with <math>BC = DA</math> and <math>BC \nparallel DA</math>. Let two variable points <math>E</math> and <math>F</math> li...")
- 11:19, 23 August 2020 (diff | hist) . . (+346) . . N 2005 IMO Problems/Problem 2 (Created page with "Let <math>a_1, a_2, \dots</math> be a sequence of integers with infinitely many positive and negative terms. Suppose that for every positive integer <math>n</math> the numbers...")
- 11:15, 23 August 2020 (diff | hist) . . (+180) . . N 2005 IMO Problems/Problem 3 (Created page with "Let <math>x, y, z > 0</math> satisfy <math>xyz\ge 1</math>. Prove that <cmath>\frac{x^5-x^2}{x^5+y^2+z^2} + \frac{y^5-y^2}{x^2+y^5+z^2} + \frac{z^5-z^2}{x^2+y^2+z^5} \ge 0.</c...")
- 11:05, 23 August 2020 (diff | hist) . . (+432) . . N 2005 IMO Problems/Problem 1 (Created page with "Six points are chosen on the sides of an equilateral triangle <math>ABC</math>: <math>A_1, A_2</math> on <math>BC</math>, <math>B_1</math>, <math>B_2</math> on <math>CA</math>...")
- 19:03, 22 August 2020 (diff | hist) . . (+1) . . 2017 AIME I Problems/Problem 9 (→Solution 6 (bash, slower, but safer))
- 19:03, 22 August 2020 (diff | hist) . . (+21) . . 2017 AIME I Problems/Problem 9 (→Solution 6 (bash, slower, but safer))
- 19:02, 22 August 2020 (diff | hist) . . (+624) . . 2017 AIME I Problems/Problem 9 (→Solution 6 (bash, slower, but safer))
- 11:20, 16 August 2020 (diff | hist) . . (0) . . m 2019 AIME II Problems/Problem 1 (→Solution)
- 11:20, 16 August 2020 (diff | hist) . . (+2) . . 2019 AIME II Problems/Problem 1 (→Solution)
- 11:19, 16 August 2020 (diff | hist) . . (-1) . . 2019 AIME II Problems/Problem 1 (→Solution)
- 11:19, 16 August 2020 (diff | hist) . . (+1) . . 2019 AIME II Problems/Problem 1 (→Solution)
- 11:18, 16 August 2020 (diff | hist) . . (-1) . . 2019 AIME II Problems/Problem 1 (→Solution)
- 11:18, 16 August 2020 (diff | hist) . . (+25) . . 2019 AIME II Problems/Problem 1 (→Solution)
- 11:17, 16 August 2020 (diff | hist) . . (-10) . . 2019 AIME II Problems/Problem 1 (→Solution)
- 11:16, 16 August 2020 (diff | hist) . . (+141) . . 2019 AIME II Problems/Problem 1 (Added point E for better definition, explained the 6-8-10)
- 11:14, 9 August 2020 (diff | hist) . . (+14) . . m 2011 AIME II Problems/Problem 4 (→Solution 2)
- 15:30, 22 June 2020 (diff | hist) . . (+650) . . N 2011 PuMAC Problems/NT Problem A8 (Created page with "By multiplying both sides by 2 and simplifying, the condition becomes <math>(2a+1)^2 - 2b^2 = -1</math>. This is a variant of Pell's Equation <math>x^2 - 2y^2 = -1</math> with...") (current)
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