Difference between revisions of "User:MRENTHUSIASM"

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===1984 AIME===
 
===1984 AIME===
[https://artofproblemsolving.com/wiki/index.php/1984_AIME_Problems/Problem_10 Problem 10] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/1984_AIME_Problems/Problem_10 Problem 10] (Solution 3)
  
 
===1985 AIME===
 
===1985 AIME===
[https://artofproblemsolving.com/wiki/index.php/1985_AIME_Problems/Problem_12 Problem 12] (Solution 7)
+
* [https://artofproblemsolving.com/wiki/index.php/1985_AIME_Problems/Problem_12 Problem 12] (Solution 7)
  
 
===1986 AIME===
 
===1986 AIME===
[https://artofproblemsolving.com/wiki/index.php/1986_AIME_Problems/Problem_2 Problem 2] (Solutions 1, 2)
+
* [https://artofproblemsolving.com/wiki/index.php/1986_AIME_Problems/Problem_2 Problem 2] (Solutions 1, 2)
  
 
===2009 AMC 10B===
 
===2009 AMC 10B===
[https://artofproblemsolving.com/wiki/index.php/2009_AMC_10B_Problems/Problem_1 Problem 1] (Solutions 1, 2, 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2009_AMC_10B_Problems/Problem_1 Problem 1] (Solutions 1, 2, 3)
  
 
===2009 AMC 12B===
 
===2009 AMC 12B===
[https://artofproblemsolving.com/wiki/index.php/2009_AMC_12B_Problems/Problem_1 Problem 1]: same as [https://artofproblemsolving.com/wiki/index.php/2009_AMC_10B_Problems/Problem_1 2009 AMC 10B Problem 1] (Solutions 1, 2, 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2009_AMC_12B_Problems/Problem_1 Problem 1]: same as [https://artofproblemsolving.com/wiki/index.php/2009_AMC_10B_Problems/Problem_1 2009 AMC 10B Problem 1] (Solutions 1, 2, 3)
  
 
===2020 AMC 8===
 
===2020 AMC 8===
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_8_Problems/Problem_1 Problem 1] (Solution 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_8_Problems/Problem_1 Problem 1] (Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_8_Problems/Problem_3 Problem 3] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_8_Problems/Problem_3 Problem 3] (Solution 3)
 
  
 
===2020 AMC 10A===
 
===2020 AMC 10A===
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_3 Problem 3] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_3 Problem 3] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_5 Problem 5] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_5 Problem 5] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_11 Problem 11] (Solution 5)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_17 Problem 17] (Solution 4)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_11 Problem 11] (Solution 5)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_24 Problem 24] (Solution 11)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_25 Problem 25] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_17 Problem 17] (Solution 4)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_24 Problem 24] (Solution 11)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_25 Problem 25] (Solution 3)
 
  
 
===2020 AMC 10B===
 
===2020 AMC 10B===
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_3 Problem 3] (Solution 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_3 Problem 3] (Solution 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_4 Problem 4] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_4 Problem 4] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_8 Problem 8] (Solution 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_13 Problem 13] (Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_8 Problem 8] (Solution 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_15 Problem 15] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_23 Problem 23] (Solution 5)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_13 Problem 13] (Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_15 Problem 15] (Solution 3)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_23 Problem 23] (Solution 5)
 
  
 
===2020 AMC 12A===
 
===2020 AMC 12A===
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_1 Problem 1] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_1 Problem 1] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_6 Problem 6] (Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_6 Problem 6] (Solution 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_8 Problem 8]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_11 2020 AMC 10A Problem 11] (Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_9 Problem 9] (Remark)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_8 Problem 8]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_11 2020 AMC 10A Problem 11] (Solution 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_10 Problem 10] (Solution 5)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_15 Problem 15] (Remark)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_9 Problem 9] (Remark)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_23 Problem 23]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_25 2020 AMC 10A Problem 25] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_24 Problem 24] (Remark)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_10 Problem 10] (Solution 5)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_25 Problem 25] (Solution 1, Remark)
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_15 Problem 15] (Remark)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_23 Problem 23]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10A_Problems/Problem_25 2020 AMC 10A Problem 25] (Solution 3)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_24 Problem 24] (Remark)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12A_Problems/Problem_25 Problem 25] (Solution 1, Remark)
 
  
 
===2020 AMC 12B===
 
===2020 AMC 12B===
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_3 Problem 3]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_3 2020 AMC 10B Problem 3] (Solution 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_3 Problem 3]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_3 2020 AMC 10B Problem 3] (Solution 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_4 Problem 4]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_4 2020 AMC 10B Problem 4] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_4 Problem 4]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_4 2020 AMC 10B Problem 4] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_5 Problem 5] (Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_6 Problem 6] (Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_5 Problem 5] (Solution 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_10 Problem 10] (Diagram, Solution 7)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_12 Problem 12] (Diagram)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_6 Problem 6] (Solution 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_13 Problem 13] (Solution 1)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_19 Problem 19]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_23 2020 AMC 10B Problem 23] (Solution 5)
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_10 Problem 10] (Diagram, Solution 7)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_12 Problem 12] (Diagram)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_13 Problem 13] (Solution 1)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2020_AMC_12B_Problems/Problem_19 Problem 19]: same as [https://artofproblemsolving.com/wiki/index.php/2020_AMC_10B_Problems/Problem_23 2020 AMC 10B Problem 23] (Solution 5)
 
  
 
===2020 AIME I===
 
===2020 AIME I===
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===2021 AMC 10A===
 
===2021 AMC 10A===
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_1 Problem 1] (Solution 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_1 Problem 1] (Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_2 Problem 2] (Solutions 2, 3, 4)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_2 Problem 2] (Solutions 2, 3, 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_3 Problem 3] (Solution 3)
 
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* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_4 Problem 4] (Solutions 1, 2)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_3 Problem 3] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_5 Problem 5] (Solutions 1, 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_6 Problem 6] (Solutions 1, 2)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_4 Problem 4] (Solutions 1, 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_7 Problem 7] (Solutions 2, 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_9 Problem 9] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_5 Problem 5] (Solutions 1, 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_10 Problem 10] (Solution 7)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_11 Problem 11] (Solutions 1, 3)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_6 Problem 6] (Solutions 1, 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_12 Problem 12] (Solution 1)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_13 Problem 13] (Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_7 Problem 7] (Solutions 2, 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_17 Problem 17] (Diagram, Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_18 Problem 18] (Solutions 1, 4)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_9 Problem 9] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_20 Problem 20] (Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_22 Problem 22] (Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_10 Problem 10] (Solution 7)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_23 Problem 23] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_24 Problem 24] (Diagram, Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_11 Problem 11] (Solutions 1, 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_25 Problem 25] (Solutions 2, 4)
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_12 Problem 12] (Solution 1)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_13 Problem 13] (Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_17 Problem 17] (Diagram, Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_18 Problem 18] (Solutions 1, 4)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_20 Problem 20] (Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_22 Problem 22] (Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_23 Problem 23] (Solution 3)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_24 Problem 24] (Diagram, Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_25 Problem 25] (Solutions 2, 4)
 
  
 
===2021 AMC 10B===
 
===2021 AMC 10B===
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_6 Problem 6] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_6 Problem 6] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_7 Problem 7] (Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_7 Problem 7] (Solution 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_8 Problem 8] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_16 Problem 16] (Solution 4)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_8 Problem 8] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_17 Problem 17] (Solution 3)
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_16 Problem 16] (Solution 4)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_17 Problem 17] (Solution 3)
 
  
 
===2021 AMC 12A===
 
===2021 AMC 12A===
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_2 Problem 2] (Solutions 2, 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_2 Problem 2] (Solutions 2, 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_3 Problem 3]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_3 2021 AMC 10A Problem 3] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_3 Problem 3]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_3 2021 AMC 10A Problem 3] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_4 Problem 4]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_7 2021 AMC 10A Problem 7] (Solutions 2, 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_6 Problem 6] (Solutions 2, 3)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_4 Problem 4]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_7 2021 AMC 10A Problem 7] (Solutions 2, 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_7 Problem 7]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_9 2021 AMC 10A Problem 9] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_9 Problem 9]: same as  
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_6 Problem 6] (Solutions 2, 3)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_7 Problem 7]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_9 2021 AMC 10A Problem 9] (Solution 3)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_9 Problem 9]: same as  
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_10 2021 AMC 10A Problem 10] (Solution 7)
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_10 2021 AMC 10A Problem 10] (Solution 7)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_10 Problem 10]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_12 2021 AMC 10A Problem 12] (Solution 1)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_10 Problem 10]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_12 2021 AMC 10A Problem 12] (Solution 1)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_11 Problem 11] (Solutions 2, 3, 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_13 Problem 13] (Solutions 2, 3)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_11 Problem 11] (Solutions 2, 3, 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_14 Problem 14] (Solutions 2, 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_15 Problem 15] (Solutions 3, 4)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_13 Problem 13] (Solutions 2, 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_17 Problem 17]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_17 2021 AMC 10A Problem 17] (Diagram, Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_18 Problem 18]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_18 2021 AMC 10A Problem 18] (Solutions 1, 4)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_14 Problem 14] (Solutions 2, 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_19 Problem 19] (Solutions 2, 3, Remark)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_21 Problem 21] (Solution 2, Remark)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_15 Problem 15] (Solutions 3, 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_22 Problem 22] (Solution 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_23 Problem 23]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_23 2021 AMC 10A Problem 23] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_17 Problem 17]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_17 2021 AMC 10A Problem 17] (Diagram, Solution 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_24 Problem 24] (Solution 1)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_25 Problem 25] (Solution 1)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_18 Problem 18]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_18 2021 AMC 10A Problem 18] (Solutions 1, 4)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_19 Problem 19] (Solutions 2, 3, Remark)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_21 Problem 21] (Solution 2, Remark)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_22 Problem 22] (Solution 4)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_23 Problem 23]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10A_Problems/Problem_23 2021 AMC 10A Problem 23] (Solution 3)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_24 Problem 24] (Solution 1)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12A_Problems/Problem_25 Problem 25] (Solution 1)
 
  
 
===2021 AMC 12B===
 
===2021 AMC 12B===
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_4 Problem 4]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_6 2021 AMC 10B Problem 6] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_4 Problem 4]: same as [https://artofproblemsolving.com/wiki/index.php/2021_AMC_10B_Problems/Problem_6 2021 AMC 10B Problem 6] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_11 Problem 11] (Solution 4)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_11 Problem 11] (Solution 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_20 Problem 20] (Solution 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_21 Problem 21] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_20 Problem 20] (Solution 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_23 Problem 23] (Solution 4)
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_21 Problem 21] (Solution 3)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AMC_12B_Problems/Problem_23 Problem 23] (Solution 4)
 
  
 
===2021 AIME I===
 
===2021 AIME I===
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_1 Problem 1] (Solution 1)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_1 Problem 1] (Solution 1)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_2 Problem 2] (Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_2 Problem 2] (Solution 2)
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* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_3 Problem 3] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_7 Problem 7] (Remark)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_3 Problem 3] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_8 Problem 8] (Solution 3, Remark)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_9 Problem 9] (Diagram, Solution 6)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_7 Problem 7] (Remark)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_10 Problem 10] (Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_11 Problem 11] (Solution 4)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_8 Problem 8] (Solution 3, Remark)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_9 Problem 9] (Diagram, Solution 6)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_10 Problem 10] (Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_I_Problems/Problem_11 Problem 11] (Solution 4)
 
  
 
===2021 AIME II===
 
===2021 AIME II===
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_1 Problem 1] (Solution 3, Remark)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_1 Problem 1] (Solution 3, Remark)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_2 Problem 2] (Solution 1)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_2 Problem 2] (Solution 1)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_3 Problem 3] (Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_4 Problem 4] (Solution 1)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_3 Problem 3] (Solution 2)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_5 Problem 5] (Solutions 2, 5)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_6 Problem 6] (Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_4 Problem 4] (Solution 1)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_7 Problem 7] (Solution 4)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_8 Problem 8] (Solution 1)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_5 Problem 5] (Solutions 2, 5)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_9 Problem 9] (Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_10 Problem 10] (Diagram, Solution 3)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_6 Problem 6] (Solution 3)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_11 Problem 11] (Solution 2)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_12 Problem 12] (Diagram, Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_7 Problem 7] (Solution 4)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_13 Problem 13] (Solution 3)
 
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_14 Problem 14] (Diagram, Solution 2)
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_8 Problem 8] (Solution 1)
+
* [https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_15 Problem 15] (Solution 2)
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_9 Problem 9] (Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_10 Problem 10] (Diagram, Solution 3)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_11 Problem 11] (Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_12 Problem 12] (Diagram, Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_13 Problem 13] (Solution 3)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_14 Problem 14] (Diagram, Solution 2)
 
 
 
[https://artofproblemsolving.com/wiki/index.php/2021_AIME_II_Problems/Problem_15 Problem 15] (Solution 2)
 

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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 math--enthusiastic and victorious!

Victorious-Hedgehog.png

And here is my personified self-portrait:

Enthusiastic.gif

~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.

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, 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

1984 AIME

1985 AIME

1986 AIME

2009 AMC 10B

2009 AMC 12B

2020 AMC 8

2020 AMC 10A

2020 AMC 10B

2020 AMC 12A

2020 AMC 12B

2020 AIME I

2020 AIME II

2021 AMC 10A

2021 AMC 10B

2021 AMC 12A

2021 AMC 10A Problem 10 (Solution 7)

2021 AMC 12B

2021 AIME I

2021 AIME II