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==Introduction== | ==Introduction== |
Revision as of 09:10, 11 September 2021
Contents
[hide]User Count
If this is your first time visiting this page, then edit it by incrementing the user count below by one.
Introduction
Hi Everyone,
I am a hedgehog who likes Message Board halping, funny pictures, emoji wars, and AoPS Wiki contributions. Keep these fun things coming!
This hedgehog represents my attitude towards mathematics--victorious and enthusiastic!
And here is my personified self-portrait:
~MRENTHUSIASM
AoPS Bio
Jerry graduated from Northeastern University in 2018 as a mathematics and computer science combined major. He has ten years of experience working with students. During his last two years in high school, he served as the math club president and prepared lively lectures on contest math. As a result, he inspired many kids to get interested in math and participate in math competitions (such as AMC and ARML). For the last eight years, he has worked with Math League to write math contests for students from grades 4 through 12 in the USA. Starting in 2019, he has served as an instructor and a Message Board Halper for many AoPS online classes and truly enjoyed that experience! In his mind, nothing is more rewarding than educating tomorrow’s bright minds. In his spare time, he loves contributing to the AoPS Wiki and playing chess and all sorts of board games, especially Scotland Yard and Samurai.
AoPS Wiki Contributions
Below are my contributions to the AMC/AIME Problems' Solutions in the AoPS Wiki. I understand that in this communal Wiki, we all have to collaborate and make compromises. In any of my solutions, if you find flaws and/or want major revisions, then please contact me via my user talk page or the private messaging system before you take action. I am sure that we can work things out.
Thank you for your cooperation, and hope you enjoy reading my solutions. :)
~MRENTHUSIASM
AJHSME / AMC 8
- 2007 AMC 8 Problem 8 (Solutions 1, 2)
- 2007 AMC 8 Problem 10 (Solution)
- 2009 AMC 8 Problem 4 (Solution)
- 2017 AMC 8 Problem 24 (Solution 1)
- 2020 AMC 8 Problem 1 (Solutions 2, 3)
- 2020 AMC 8 Problem 3 (Solution 3)
- 2020 AMC 8 Problem 4 (Solutions 3, 5)
AMC 10
- 2004 AMC 10A Problem 24 (Solutions 1, 2)
- 2007 AMC 10A Problem 20 (Solutions 1, 2, 3, 4, 5, 6, 7)
- 2009 AMC 10B Problem 1 (Solutions 1, 2, 3, 4)
- 2012 AMC 10B Problem 10 (Solutions 1, 2)
- 2018 AMC 10A Problem 1 (Solution)
- 2018 AMC 10A Problem 5 (Solution 3)
- 2018 AMC 10A Problem 7 (Solution 1)
- 2018 AMC 10A Problem 8 (Solution 3)
- 2018 AMC 10A Problem 17 (Solution 4)
- 2018 AMC 10A Problem 21 (Remark)
- 2018 AMC 10A Problem 23 (Solution 1)
- 2018 AMC 10A Problem 25 (Solutions 1, 3)
- 2020 AMC 10A Problem 3 (Solutions 1, 3)
- 2020 AMC 10A Problem 5 (Solution 3)
- 2020 AMC 10A Problem 11 (Solution 5)
- 2020 AMC 10A Problem 17 (Solution 1)
- 2020 AMC 10A Problem 24 (Solution 11)
- 2020 AMC 10A Problem 25 (Solution 2)
- 2020 AMC 10B Problem 3 (Solution 1)
- 2020 AMC 10B Problem 4 (Solution 3)
- 2020 AMC 10B Problem 8 (Solution 4)
- 2020 AMC 10B Problem 13 (Solution 1)
- 2020 AMC 10B Problem 15 (Solutions 1, 3)
- 2020 AMC 10B Problem 23 (Solution 1)
- 2021 AMC 10A Problem 1 (Solution 2)
- 2021 AMC 10A Problem 2 (Solutions 2, 3, 4)
- 2021 AMC 10A Problem 3 (Solution 3)
- 2021 AMC 10A Problem 4 (Solutions 1, 2)
- 2021 AMC 10A Problem 5 (Solutions 1, 2, 3)
- 2021 AMC 10A Problem 6 (Solutions 1, 2)
- 2021 AMC 10A Problem 7 (Solutions 1, 3)
- 2021 AMC 10A Problem 8 (Solutions 1, 2, 3)
- 2021 AMC 10A Problem 9 (Solution 2)
- 2021 AMC 10A Problem 10 (Solution 7)
- 2021 AMC 10A Problem 11 (Solutions 1, 3)
- 2021 AMC 10A Problem 12 (Solution 1)
- 2021 AMC 10A Problem 13 (Solutions 1, 2, 3)
- 2021 AMC 10A Problem 17 (Diagram, Solutions 1, 2)
- 2021 AMC 10A Problem 18 (Solutions 1, 4, Remarks)
- 2021 AMC 10A Problem 20 (Solutions 2, 3)
- 2021 AMC 10A Problem 21 (Diagram, Solution, Video Solution)
- 2021 AMC 10A Problem 22 (Solution 2, Video Solution)
- 2021 AMC 10A Problem 23 (Solution 3, Video Solution)
- 2021 AMC 10A Problem 24 (Diagram, Solutions 1, 2, 3)
- 2021 AMC 10A Problem 25 (Solutions 2, 3)
- 2021 AMC 10B Problem 6 (Solution 3)
- 2021 AMC 10B Problem 7 (Solution)
- 2021 AMC 10B Problem 8 (Solutions 1, 2, 3)
- 2021 AMC 10B Problem 16 (Solution 4)
- 2021 AMC 10B Problem 17 (Solution)
- 2021 AMC 10B Problem 23 (Diagram)
AHSME / AMC 12
- 1976 AHSME Problem 24 (Solution)
- 1976 AHSME Problem 25 (Solution)
- 1976 AHSME Problem 27 (Solutions 1, 2)
- 1976 AHSME Problem 28 (Solution)
- 1976 AHSME Problem 30 (Solution)
- 1978 AHSME Problem 20 (Solution)
- 1982 AHSME Problem 27 (Solution)
- 1982 AHSME Problem 28 (Solution)
- 1990 AHSME Problem 26 (Solutions 1, 2)
- 1991 AHSME Problem 6 (Solution)
- 1991 AHSME Problem 20 (Solution)
- 1991 AHSME Problem 27 (Solution)
- 2004 AMC 12A Problem 16 (Solution)
- 2004 AMC 12A Problem 17: same as 2004 AMC 10A Problem 24 (Solutions 1, 2)
- 2009 AMC 12B Problem 1: same as 2009 AMC 10B Problem 1 (Solutions 1, 2, 3, 4)
- 2014 AMC 12A Problem 18 (Solution 1)
- 2018 AMC 12A Problem 2 (Solutions 1, 2)
- 2018 AMC 12A Problem 4: same as 2018 AMC 10A Problem 5 (Solution 3)
- 2018 AMC 12A Problem 7: same as 2018 AMC 10A Problem 7 (Solution 1)
- 2018 AMC 12A Problem 12: same as 2018 AMC 10A Problem 17 (Solution 4)
- 2018 AMC 12A Problem 14 (Solutions 1, 2, 3, 4, 5)
- 2018 AMC 12A Problem 16: same as 2018 AMC 10A Problem 21 (Remark)
- 2018 AMC 12A Problem 17: same as 2018 AMC 10A Problem 23 (Solution 1)
- 2018 AMC 12A Problem 19 (Solution 1)
- 2018 AMC 12A Problem 21 (Solution 1)
- 2018 AMC 12A Problem 22 (Solutions 1, 2, 3)
- 2018 AMC 12A Problem 23 (Diagram, Solution 2)
- 2018 AMC 12A Problem 24 (Solutions 1, 2, 3)
- 2018 AMC 12A Problem 25: same as 2018 AMC 10A Problem 25 (Solutions 1, 3)
- 2020 AMC 12A Problem 1 (Solution 3)
- 2020 AMC 12A Problem 6 (Solution 2)
- 2020 AMC 12A Problem 8: same as 2020 AMC 10A Problem 11 (Solution 5)
- 2020 AMC 12A Problem 9 (Remark)
- 2020 AMC 12A Problem 10 (Solutions 1, 2, 5)
- 2020 AMC 12A Problem 15 (Solutions 1, 2)
- 2020 AMC 12A Problem 23: same as 2020 AMC 10A Problem 25 (Solution 2)
- 2020 AMC 12A Problem 24 (Remark)
- 2020 AMC 12A Problem 25 (Solution 1, Remark)
- 2020 AMC 12B Problem 3: same as 2020 AMC 10B Problem 3 (Solution 1)
- 2020 AMC 12B Problem 4: same as 2020 AMC 10B Problem 4 (Solution 3)
- 2020 AMC 12B Problem 5 (Solution 1)
- 2020 AMC 12B Problem 6 (Solution 2)
- 2020 AMC 12B Problem 10 (Diagram, Solution 7)
- 2020 AMC 12B Problem 12 (Diagram)
- 2020 AMC 12B Problem 13 (Solutions 1, 4)
- 2020 AMC 12B Problem 19: same as 2020 AMC 10B Problem 23 (Solution 1)
- 2021 AMC 12A Problem 2 (Solutions 2, 3)
- 2021 AMC 12A Problem 3: same as 2021 AMC 10A Problem 3 (Solution 3)
- 2021 AMC 12A Problem 4: same as 2021 AMC 10A Problem 7 (Solutions 1, 3)
- 2021 AMC 12A Problem 5: same as 2021 AMC 10A Problem 8 (Solutions 1, 2, 3)
- 2021 AMC 12A Problem 6 (Solutions 2, 3)
- 2021 AMC 12A Problem 7: same as 2021 AMC 10A Problem 9 (Solution 2)
- 2021 AMC 12A Problem 9: same as 2021 AMC 10A Problem 10 (Solution 7)
- 2021 AMC 12A Problem 10: same as 2021 AMC 10A Problem 12 (Solution 1)
- 2021 AMC 12A Problem 11 (Solutions 1, 2, 3)
- 2021 AMC 12A Problem 13 (Solutions 2, 3)
- 2021 AMC 12A Problem 14 (Solutions 1, 2, 3)
- 2021 AMC 12A Problem 15 (Solutions 1, 2, 4)
- 2021 AMC 12A Problem 17: same as 2021 AMC 10A Problem 17 (Diagram, Solutions 1, 2)
- 2021 AMC 12A Problem 18: same as 2021 AMC 10A Problem 18 (Solutions 1, 4, Remarks)
- 2021 AMC 12A Problem 19 (Solutions 2, 3, Remark)
- 2021 AMC 12A Problem 21 (Solution 2, Remark)
- 2021 AMC 12A Problem 22 (Solutions 1, 2, 3, 4, 5)
- 2021 AMC 12A Problem 23: same as 2021 AMC 10A Problem 23 (Solution 3, Video Solution)
- 2021 AMC 12A Problem 24 (Solution 1)
- 2021 AMC 12A Problem 25 (Solution 1)
- 2021 AMC 12B Problem 4: same as 2021 AMC 10B Problem 6 (Solution 3)
- 2021 AMC 12B Problem 11 (Solution 4)
- 2021 AMC 12B Problem 14 (Solution 3)
- 2021 AMC 12B Problem 20 (Solution 4)
- 2021 AMC 12B Problem 21 (Solution 3)
- 2021 AMC 12B Problem 23 (Solution 4)
AIME
- 1984 AIME Problem 4 (Solutions 1, 2)
- 1984 AIME Problem 10 (Solution 3)
- 1985 AIME Problem 12 (Solutions 1, 2, 3)
- 1986 AIME Problem 2 (Solutions 1, 2)
- 1987 AIME Problem 14 (Solutions 1, 2, 3)
- 1988 AIME Problem 8 (Solution 1)
- 1988 AIME Problem 13 (Solution 6)
- 1989 AIME Problem 1 (Solutions 4, 5)
- 1989 AIME Problem 8 (Solutions 1, 2, 3)
- 1989 AIME Problem 9 (Solutions 1, 2, 4)
- 1990 AIME Problem 8 (Solution, Remark)
- 1992 AIME Problem 6 (Solution 1)
- 1993 AIME Problem 7 (Solution 4)
- 1993 AIME Problem 8 (Solutions 3, 4)
- 2019 AIME II Problem 7 (Diagram)
- 2020 AIME I Problem 5 (Solution 9)
- 2021 AIME I Problem 1 (Solution 1)
- 2021 AIME I Problem 2 (Solution 5)
- 2021 AIME I Problem 3 (Solution 3)
- 2021 AIME I Problem 7 (Remark)
- 2021 AIME I Problem 8 (Solution 3, Remark)
- 2021 AIME I Problem 9 (Diagram, Solution 6)
- 2021 AIME I Problem 10 (Solution 2)
- 2021 AIME I Problem 11 (Solution 1)
- 2021 AIME I Problem 12 (Solution)
- 2021 AIME I Problem 14 (Solutions 2, 3)
- 2021 AIME I Problem 15 (Diagram, Solution 1)
- 2021 AIME II Problem 1 (Solution 3, Remark)
- 2021 AIME II Problem 2 (Solution 1)
- 2021 AIME II Problem 3 (Solution 2)
- 2021 AIME II Problem 4 (Solution 1)
- 2021 AIME II Problem 5 (Solutions 2, 5)
- 2021 AIME II Problem 6 (Solution 3)
- 2021 AIME II Problem 7 (Solution 4)
- 2021 AIME II Problem 8 (Solution 1)
- 2021 AIME II Problem 9 (Solution 1, Remarks)
- 2021 AIME II Problem 10 (Diagram, Solution 1)
- 2021 AIME II Problem 11 (Solution 2)
- 2021 AIME II Problem 12 (Solution 2)
- 2021 AIME II Problem 13 (Solutions 1, 3)
- 2021 AIME II Problem 14 (Diagram, Solution 1)
- 2021 AIME II Problem 15 (Solution 2)
External Links
- User Talk Page
Welcome to my user talk page here. Feel free to leave any message you like. - Flame Kho's User Page
Recently I am helping my friend Flame Kho to create his user page. Enjoy his AMC Solutions and artworks!