User contributions
- 16:33, 10 November 2023 (diff | hist) . . (+1) . . m 2023 AMC 12A Problems (→Problem 19)
- 16:25, 10 November 2023 (diff | hist) . . (+210) . . 1972 IMO Problems/Problem 1 (technicality - assuming A and B must be nonempty) (current)
- 12:56, 20 July 2023 (diff | hist) . . (+28) . . m 2021 Fall AMC 12A Problems/Problem 1
- 12:45, 6 May 2023 (diff | hist) . . (-83) . . User:Ehuang0531 (Blanked the page) (current) (Tag: Blanking)
- 23:41, 17 November 2022 (diff | hist) . . (-2) . . m 2021 Fall AMC 12B Problems/Problem 20 (→Solution 3 (Casework, Counting Up))
- 23:37, 17 November 2022 (diff | hist) . . (-12) . . m 2021 Fall AMC 12B Problems/Problem 20
- 23:36, 17 November 2022 (diff | hist) . . (+11) . . m 2021 Fall AMC 12B Problems/Problem 20
- 23:33, 17 November 2022 (diff | hist) . . (-542) . . 2021 Fall AMC 12B Problems/Problem 20 (→Solution 3 (Direct Counting))
- 23:16, 17 November 2022 (diff | hist) . . (+20) . . m 2022 AMC 12B Problems/Problem 3 (→Solution 1)
- 23:12, 17 November 2022 (diff | hist) . . (-1) . . m 2022 AMC 10B Problems/Problem 8
- 23:06, 17 November 2022 (diff | hist) . . (0) . . m 2022 AMC 10B Problems/Problem 16 (→Solution)
- 23:05, 17 November 2022 (diff | hist) . . (+47) . . 2022 AMC 10B Problems/Problem 16
- 23:00, 17 November 2022 (diff | hist) . . (+33) . . 2022 AMC 10B Problems/Problem 16
- 22:38, 17 November 2022 (diff | hist) . . (+46) . . N 2022 AMC 12B Problems/Problem 13 (Redirected page to 2022 AMC 10B Problems/Problem 16) (current) (Tag: New redirect)
- 22:14, 17 November 2022 (diff | hist) . . (+37) . . N Area of a Triangle (Redirected page to Area#Area of a Triangle) (current) (Tag: New redirect)
- 22:13, 17 November 2022 (diff | hist) . . (+6) . . Area
- 22:13, 17 November 2022 (diff | hist) . . (+23) . . m 2022 AMC 12B Problems/Problem 14 (→Solution: add link)
- 22:06, 17 November 2022 (diff | hist) . . (+1,062) . . 2022 AMC 12B Problems/Problem 12 (→Solution)
- 21:29, 17 November 2022 (diff | hist) . . (+515) . . 2022 AMC 12B Problems/Problem 12
- 21:24, 17 November 2022 (diff | hist) . . (+5) . . 2022 AMC 12B Problems/Problem 10 (→Solution: cannot escape sign errors 🙁)
- 21:21, 17 November 2022 (diff | hist) . . (-7) . . m 2022 AMC 12B Problems/Problem 9 (→Solution 1)
- 21:19, 17 November 2022 (diff | hist) . . (+2) . . m 2022 AMC 12B Problems/Problem 9 (→Problem)
- 21:18, 17 November 2022 (diff | hist) . . (+10) . . m 2022 AMC 12B Problems (→Problem 9)
- 21:15, 17 November 2022 (diff | hist) . . (+39) . . 2022 AMC 12B Problems/Problem 9
- 21:02, 17 November 2022 (diff | hist) . . (+70) . . 2022 AMC 10B Problems/Problem 8 (→Solution 1)
- 20:57, 17 November 2022 (diff | hist) . . (+22) . . 2022 AMC 12B Problems/Problem 5 (→Solution 1: change wording for clarity)
- 20:47, 17 November 2022 (diff | hist) . . (+8) . . m 2022 AMC 12B Problems/Problem 3 (→Solution 1)
- 20:47, 17 November 2022 (diff | hist) . . (+3) . . 2022 AMC 12B Problems/Problem 3 (change wording for clarity)
- 19:46, 17 November 2022 (diff | hist) . . (-283) . . User:Ehuang0531
- 19:37, 17 November 2022 (diff | hist) . . (+3) . . m 2022 AMC 12B Problems/Problem 8
- 19:36, 17 November 2022 (diff | hist) . . (-11) . . m 2022 AMC 12B Problems (→Problem 8)
- 19:35, 17 November 2022 (diff | hist) . . (0) . . m 2022 AMC 12B Problems/Problem 8 (→Problem: on the exam, answer choices were lowercase)
- 19:34, 17 November 2022 (diff | hist) . . (-10) . . m 2022 AMC 12B Problems/Problem 8 (→Problem: ce)
- 19:31, 17 November 2022 (diff | hist) . . (+13) . . m 2022 AMC 12B Problems/Problem 10 (→Solution)
- 19:29, 17 November 2022 (diff | hist) . . (+12) . . m 2022 AMC 12B Problems/Problem 10 (→Solution)
- 19:28, 17 November 2022 (diff | hist) . . (0) . . m 2022 AMC 12B Problems/Problem 10 (→Solution)
- 19:27, 17 November 2022 (diff | hist) . . (-42) . . 2022 AMC 12B Problems/Problem 10
- 19:26, 17 November 2022 (diff | hist) . . (+379) . . 2022 AMC 12B Problems/Problem 10
- 19:21, 17 November 2022 (diff | hist) . . (+72) . . 2022 AMC 12B Problems/Problem 10 (→Solution: ce)
- 19:13, 17 November 2022 (diff | hist) . . (+38) . . m 2022 AMC 12B Problems/Problem 14 (→Solution)
- 19:10, 17 November 2022 (diff | hist) . . (-93) . . 2022 AMC 12B Problems/Problem 14 (→Solution: students who haven't taken PC may enjoy the second (brutal calculation) method)
- 19:07, 17 November 2022 (diff | hist) . . (+451) . . 2022 AMC 12B Problems/Problem 14 (→Solution: I really hate the tangent addition formula, but it's admittedly the undoubtly best sol here)
- 18:58, 17 November 2022 (diff | hist) . . (+555) . . 2022 AMC 12B Problems/Problem 14 (→Solution)
- 18:51, 17 November 2022 (diff | hist) . . (+496) . . N 2022 AMC 12B Problems/Problem 14 (Created page with "== Problem == The graph of <math>y=x^2+2x-15</math> intersects the <math>x</math>-axis at points <math>A</math> and <math>C</math> and the <math>y</math>-axis at point <math>...")
- 18:46, 17 November 2022 (diff | hist) . . (+49) . . N SAS Congruence (Redirected page to Congruent (geometry)#SAS Congruence) (current) (Tag: New redirect)
- 18:45, 17 November 2022 (diff | hist) . . (+26) . . 2022 AMC 12B Problems/Problem 10 (→Solution)
- 18:45, 17 November 2022 (diff | hist) . . (+648) . . 2022 AMC 12B Problems/Problem 10 (→Solution)
- 18:33, 17 November 2022 (diff | hist) . . (+495) . . N 2022 AMC 12B Problems/Problem 10 (Created page with "==Problem== Regular hexagon <math>ABCDEF</math> has side length <math>2</math>. Let <math>G</math> be the midpoint of <math>\overline{AB}</math>, and let <math>H</math> be th...")
- 18:25, 17 November 2022 (diff | hist) . . (+123) . . 2022 AMC 10A Problems/Problem 9 (add redirect notice)
- 18:24, 17 November 2022 (diff | hist) . . (+1) . . 2022 AMC 10A Problems (→Problem 8: ce)
- 18:24, 17 November 2022 (diff | hist) . . (+112) . . 2022 AMC 10A Problems/Problem 8 (add redirect notice, some wording edits)
- 18:19, 17 November 2022 (diff | hist) . . (0) . . 2022 AMC 12B Problems/Problem 6 (correct link) (current) (Tag: Redirect target changed)
- 18:17, 17 November 2022 (diff | hist) . . (+5) . . m 2022 AMC 10B Problems/Problem 7 (→Solution 1: add link)
- 18:13, 17 November 2022 (diff | hist) . . (+647) . . 2022 AMC 10B Problems (→Problem 2)
- 18:13, 17 November 2022 (diff | hist) . . (+24) . . 2022 AMC 12B Problems (→Problem 2)
- 18:13, 17 November 2022 (diff | hist) . . (+5) . . m 2022 AMC 10B Problems/Problem 2 (→Problem: ce)
- 18:11, 17 November 2022 (diff | hist) . . (+45) . . N 2022 AMC 12B Problems/Problem 2 (Redirected page to 2022 AMC 10B Problems/Problem 2) (current) (Tag: New redirect)
- 18:11, 17 November 2022 (diff | hist) . . (+123) . . 2022 AMC 10B Problems/Problem 2 (add redirect notice)
- 18:09, 17 November 2022 (diff | hist) . . (+126) . . 2022 AMC 10B Problems/Problem 2 (add endmatter)
- 18:06, 17 November 2022 (diff | hist) . . (+342) . . 2022 AMC 10B Problems/Problem 2 (restored original not-to-scale figure in problem statement and moved to-scale figure to solution; ce)
- 18:01, 17 November 2022 (diff | hist) . . (+2) . . m 2022 AMC 12B Problems (→Problem 1: ce)
- 18:01, 17 November 2022 (diff | hist) . . (-17) . . m 2022 AMC 10B Problems (→Problem 1: formatting)
- 21:40, 26 April 2022 (diff | hist) . . (+131) . . m 2021 Fall AMC 12A Problems/Problem 14 (→Solution 1)
- 18:46, 26 November 2021 (diff | hist) . . (+6) . . 2021 Fall AMC 12A Problems/Problem 11
- 18:42, 26 November 2021 (diff | hist) . . (-38) . . m 2021 Fall AMC 12A Problems/Problem 11
- 18:35, 26 November 2021 (diff | hist) . . (-520) . . 2021 Fall AMC 12A Problems/Problem 11 (combine solutions 2 and 3)
- 12:14, 26 November 2021 (diff | hist) . . (+90) . . 2021 Fall AMC 12B Problems/Problem 20 (→Solution 1 (Direct Counting))
- 12:12, 26 November 2021 (diff | hist) . . (-101) . . 2021 Fall AMC 12B Problems/Problem 20
- 11:56, 26 November 2021 (diff | hist) . . (+195) . . 2021 Fall AMC 12B Problems/Problem 20
- 11:49, 26 November 2021 (diff | hist) . . (-24) . . 2021 Fall AMC 12B Problems/Problem 20 (can't use references grr)
- 11:47, 26 November 2021 (diff | hist) . . (+38) . . 2021 Fall AMC 12B Problems/Problem 20
- 11:47, 26 November 2021 (diff | hist) . . (+3,200) . . 2021 Fall AMC 12B Problems/Problem 20 (I went wrong by incorrectly assuming that drawing all the faces proves arrangements distinct. That is not what I did on the test (b/c of time), so I wrote down what I did then instead. Google probably knows how to do this question by overcounting...)
- 20:20, 25 November 2021 (diff | hist) . . (-2,808) . . 2021 Fall AMC 12B Problems/Problem 20 (Very frustrated b/c I know this is the method I used on my test and I know that I circled 7. But I can't figure out exactly how I counted lol.)
- 20:09, 25 November 2021 (diff | hist) . . (+642) . . 2021 Fall AMC 12B Problems/Problem 20 (→Solution 1 (Direct Counting): something is still wrong lol)
- 19:48, 25 November 2021 (diff | hist) . . (+598) . . 2021 Fall AMC 12B Problems/Problem 20 (→Solution 1 (Direct Counting))
- 19:36, 25 November 2021 (diff | hist) . . (+1,568) . . 2021 Fall AMC 12B Problems/Problem 20
- 19:32, 25 November 2021 (diff | hist) . . (-1,888) . . 2021 Fall AMC 12B Problems/Problem 20 (→Solution 1 (Direct Counting): I know that I did something like this on the test and got the question right. But somehow as I'm writing this out, my solution makes less and less sense to me. Whelp.)
- 19:29, 25 November 2021 (diff | hist) . . (+247) . . 2021 Fall AMC 12B Problems/Problem 20
- 19:20, 25 November 2021 (diff | hist) . . (+622) . . 2021 Fall AMC 12B Problems/Problem 20 (→Solution 1 (Direct Counting))
- 19:06, 25 November 2021 (diff | hist) . . (+300) . . 2021 Fall AMC 12B Problems/Problem 20 (→Solution 1 (Direct Counting))
- 19:02, 25 November 2021 (diff | hist) . . (+719) . . 2021 Fall AMC 12B Problems/Problem 20
- 18:36, 24 November 2021 (diff | hist) . . (-759) . . 2021 Fall AMC 12B Problems/Problem 6 (all 3 solutions are the same)
- 18:27, 24 November 2021 (diff | hist) . . (+420) . . 2021 Fall AMC 12B Problems/Problem 2
- 18:11, 24 November 2021 (diff | hist) . . (+16) . . m 2021 Fall AMC 12A Problems/Problem 22
- 23:38, 23 November 2021 (diff | hist) . . (+2) . . m User:Ehuang0531
- 23:38, 23 November 2021 (diff | hist) . . (+85) . . User:Ehuang0531
- 23:32, 23 November 2021 (diff | hist) . . (+279) . . N User:Ehuang0531 (Created page with "Mediocre math student but avid wiki fan. Maybe you've seen me at w:c:Polytopia but probably not. New to AoPS editing but long-time reader. If there is anything I did wr...")
- 23:20, 23 November 2021 (diff | hist) . . (+1,339) . . 2021 Fall AMC 12A Problems (→Problem 21)
- 23:18, 23 November 2021 (diff | hist) . . (+501) . . N 2021 Fall AMC 12A Problems/Problem 20 (Created page with "==Problem== For each positive integer <math>n</math>, let <math>f_1(n)</math> be twice the number of positive integer divisors of <math>n</math>, and for <math>j \ge 2</math>,...")
- 23:06, 23 November 2021 (diff | hist) . . (+9) . . m 2021 Fall AMC 12A Problems/Problem 11
- 23:04, 23 November 2021 (diff | hist) . . (-26) . . m 2021 Fall AMC 12A Problems/Problem 11 (→Solution 2 (Pythagorean Theorem))
- 23:02, 23 November 2021 (diff | hist) . . (+54) . . 2021 Fall AMC 12A Problems/Problem 11 (→Solution 2 (Pythagorean Theorem))
- 22:54, 23 November 2021 (diff | hist) . . (0) . . m 2021 Fall AMC 12A Problems/Problem 11 (→Solution 2 (Pythagorean Theorem))
- 22:53, 23 November 2021 (diff | hist) . . (-57) . . 2021 Fall AMC 12A Problems/Problem 11
- 22:48, 23 November 2021 (diff | hist) . . (-12) . . 2021 Fall AMC 12A Problems/Problem 1 (thanks for the formatting tips; "great alternate solution" i.e. solution for idiots that don't realize 91 is divisible by 13 lol)
- 22:33, 23 November 2021 (diff | hist) . . (+3) . . 2021 Fall AMC 12A Problems/Problem 1 (→Solution 2 (Difference of Two Squares))
- 22:32, 23 November 2021 (diff | hist) . . (+3) . . 2021 Fall AMC 12A Problems/Problem 1
- 22:32, 23 November 2021 (diff | hist) . . (+30) . . 2021 Fall AMC 12A Problems/Problem 1
- 22:31, 23 November 2021 (diff | hist) . . (+173) . . 2021 Fall AMC 12A Problems/Problem 1
- 22:22, 23 November 2021 (diff | hist) . . (+4) . . 2021 Fall AMC 12B Problems (→Problem 7)
- 22:22, 23 November 2021 (diff | hist) . . (+4) . . 2021 Fall AMC 10B Problems (→Problem 12)
- 22:06, 23 November 2021 (diff | hist) . . (+98) . . N 2021 Fall AMC 12B Answer Key (Created page with "#E #B #C #E #C #C #D #D #B #E #C #B #E #B #E #B #A #A #E #A #A #C #A #C #C") (current)
- 22:05, 23 November 2021 (diff | hist) . . (+711) . . N 2021 Fall AMC 12B Problems/Problem 20 (from 10B 24)
- 22:01, 23 November 2021 (diff | hist) . . (-461) . . 2021 Fall AMC 10B Problems/Problem 24 (Redirected page to 2021 Fall AMC 12B Problems/Problem 20) (current) (Tag: New redirect)
- 21:58, 23 November 2021 (diff | hist) . . (+570) . . 2021 Fall AMC 12B Problems (→Problem 17)
- 21:51, 23 November 2021 (diff | hist) . . (-5,657) . . 2021 Fall AMC 12B Problems
- 21:48, 23 November 2021 (diff | hist) . . (+34) . . m 2021 Fall AMC 10B Problems (→Problem 8)
- 21:44, 23 November 2021 (diff | hist) . . (-3) . . m 2021 Fall AMC 10B Problems
- 21:43, 23 November 2021 (diff | hist) . . (-98) . . 2021 Fall AMC 12B Problems
- 21:38, 23 November 2021 (diff | hist) . . (+12,828) . . N 2021 Fall AMC 12B Problems (Created page with "{{AMC12 Problems|year=2021 Fall|ab=B}} ==Problem 1== What is the value of <math>1234+2341+3412+4123?</math> <math>(\textbf{A})\: 10{,}000\qquad(\textbf{B}) \: 10{,}010\qquad...")
- 21:23, 23 November 2021 (diff | hist) . . (-5) . . m 2021 Fall AMC 12A Problems/Problem 22
- 21:15, 23 November 2021 (diff | hist) . . (-57) . . CPCTC (current)
- 21:11, 23 November 2021 (diff | hist) . . (+37) . . 2021 Fall AMC 12A Problems/Problem 14
- 21:08, 23 November 2021 (diff | hist) . . (+71) . . 2021 Fall AMC 12A Problems/Problem 14
- 21:00, 23 November 2021 (diff | hist) . . (+9) . . m 2021 Fall AMC 12A Problems (→Problem 14)
- 20:59, 23 November 2021 (diff | hist) . . (+15) . . 2021 Fall AMC 12A Problems/Problem 14
- 20:58, 23 November 2021 (diff | hist) . . (+852) . . 2021 Fall AMC 12A Problems/Problem 14
- 20:52, 23 November 2021 (diff | hist) . . (+147) . . 2021 Fall AMC 12A Problems/Problem 18
- 20:50, 23 November 2021 (diff | hist) . . (-3,537) . . 2021 Fall AMC 10A Problems/Problem 21 (redirect to 12A #18) (current) (Tag: New redirect)
- 20:50, 23 November 2021 (diff | hist) . . (+3,640) . . N 2021 Fall AMC 12A Problems/Problem 18 (move from 10A #21)
- 19:59, 23 November 2021 (diff | hist) . . (+318) . . 2021 Fall AMC 12A Problems/Problem 17 (→Solution)
- 19:54, 23 November 2021 (diff | hist) . . (+504) . . N 2021 Fall AMC 12A Problems/Problem 17 (Created page with "==Problem== For how many ordered pairs <math>(b,c)</math> of positive integers does neither <math>x^2+bx+c=0</math> nor <math>x^2+cx+b=0</math> have two distinct real solution...")
- 19:42, 23 November 2021 (diff | hist) . . (0) . . m 2021 Fall AMC 12A Problems/Problem 22
- 19:40, 23 November 2021 (diff | hist) . . (-34) . . 2021 Fall AMC 12A Problems/Problem 22 (→Solution)
- 19:39, 23 November 2021 (diff | hist) . . (-22) . . 2021 Fall AMC 12A Problems/Problem 22 (→Solution)
- 19:38, 23 November 2021 (diff | hist) . . (+5) . . 2021 Fall AMC 12A Problems/Problem 22 (→Solution)
- 19:31, 23 November 2021 (diff | hist) . . (+1,683) . . N 2021 Fall AMC 12A Problems/Problem 22 (Created page with "==Problem== Azar and Carl play a game of tic-tac-toe. Azar places an in <math>X</math> one of the boxes in a 3-by-3 array of boxes, then Carl places an <math>O</math> in one o...")
- 19:30, 23 November 2021 (diff | hist) . . (-751) . . 2021 Fall AMC 12A Problems (you did not see me do that)
- 19:29, 23 November 2021 (diff | hist) . . (+751) . . 2021 Fall AMC 12A Problems (→Problem 22)
- 19:22, 23 November 2021 (diff | hist) . . (+800) . . 2021 Fall AMC 12A Problems (→Problem 22)
- 19:11, 23 November 2021 (diff | hist) . . (+23) . . 2021 Fall AMC 12A Problems/Problem 14 (→Solution (Law of Cosines and Equilateral Triangle Area))
- 19:10, 23 November 2021 (diff | hist) . . (+102) . . 2021 Fall AMC 12A Problems/Problem 14 (→Solution (Law of Cosines and Equilateral Triangle Area))
- 19:06, 23 November 2021 (diff | hist) . . (+105) . . 2021 Fall AMC 12A Problems/Problem 14 (→Solution (Law of Cosines and Equilateral Triangle Area))
- 19:04, 23 November 2021 (diff | hist) . . (-7) . . 2021 Fall AMC 12A Problems/Problem 14 (→Solution (Law of Cosines and Equilateral Triangle Area))
- 19:03, 23 November 2021 (diff | hist) . . (+836) . . N 2021 Fall AMC 12A Problems/Problem 14 (Created page with "==Solution (Law of Cosines and Equilateral Triangle Area)== Isosceles triangles <math>ABE</math>, <math>CBD</math>, and <math>EDF</math> are identical by SAS similarity. <mat...")
- 18:46, 23 November 2021 (diff | hist) . . (0) . . 2021 Fall AMC 12A Problems
- 18:45, 23 November 2021 (diff | hist) . . (+143) . . 2021 Fall AMC 12A Problems/Problem 3
- 18:45, 23 November 2021 (diff | hist) . . (+143) . . 2021 Fall AMC 12A Problems/Problem 2
- 18:44, 23 November 2021 (diff | hist) . . (+1,605) . . 2021 Fall AMC 12A Problems/Problem 3 (move from 10A #4)
- 18:44, 23 November 2021 (diff | hist) . . (-2,143) . . 2021 Fall AMC 10A Problems/Problem 4 (move to 12A #3) (current) (Tag: New redirect)
- 18:41, 23 November 2021 (diff | hist) . . (+74) . . 2021 Fall AMC 12A Problems/Problem 11 (→Solution 2 (Pythagorean Theorem))
- 18:38, 23 November 2021 (diff | hist) . . (+11) . . m 2021 Fall AMC 12A Problems/Problem 11 (→Solution 2 (Pythagorean Theorem))
- 18:38, 23 November 2021 (diff | hist) . . (+144) . . 2021 Fall AMC 12A Problems/Problem 11 (→Solution 2 (Pythagorean Theorem))
- 18:36, 23 November 2021 (diff | hist) . . (+659) . . 2021 Fall AMC 12A Problems/Problem 11
- 18:24, 23 November 2021 (diff | hist) . . (+599) . . 2021 Fall AMC 12A Problems/Problem 2 (move from 10A)
- 18:24, 23 November 2021 (diff | hist) . . (-923) . . 2021 Fall AMC 10A Problems/Problem 2 (redirect to 12A) (current) (Tag: New redirect)
- 18:22, 23 November 2021 (diff | hist) . . (+474) . . 2021 Fall AMC 12A Problems/Problem 1
- 18:22, 23 November 2021 (diff | hist) . . (-550) . . 2021 Fall AMC 10A Problems/Problem 1 (redirect to 12A) (Tag: New redirect)
- 18:19, 23 November 2021 (diff | hist) . . (+9) . . m 2021 Fall AMC 10A Problems/Problem 1
- 18:18, 23 November 2021 (diff | hist) . . (+124) . . 2021 Fall AMC 10A Problems/Problem 1
- 18:13, 23 November 2021 (diff | hist) . . (-3,936) . . 2021 Fall AMC 12A Problems
- 18:09, 23 November 2021 (diff | hist) . . (+12,269) . . 2021 Fall AMC 12A Problems (still under construction; saving progress)
- 17:52, 23 November 2021 (diff | hist) . . (-30) . . m 2021 Fall AMC 12A (current)
- 17:44, 23 November 2021 (diff | hist) . . (0) . . Pigeonhole Principle (Undo revision 150861 by Happykeeper (talk) I am aware that I am probably disappointing many of you, but I believe this joke has had a good run, and it is time for it to go now.) (Tag: Undo)
- 21:12, 3 August 2021 (diff | hist) . . (-220) . . 2019 AMC 10A Problems/Problem 14 (remove the incorrect solution 2)
- 17:33, 3 August 2021 (diff | hist) . . (-266) . . 2019 AMC 10A Problems/Problem 4 (merge solutions 1 and 3 b/c they are the same, just worded differently)