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• 1978 AHSME Problems/Problem 28
  pair A1=(0,0), A2=(1,0), A3=(0.5,sqrt(3)/2); D(MP("A_1",A1)--MP("A_2",A2)--MP("A_3",A3,N)--cycle);
  763 bytes (127 words) - 14:27, 20 June 2021
• 2021 Fall AMC 12B Problems/Problem 15
  pair O,A1,B1,C1,A2,B2,C2,A3,B3,C3,A4,B4,C4; A1=dir(x); A2=dir(x+y); A3=dir(x+2y); A4=dir(x+3y);
  4 KB (686 words) - 18:38, 12 July 2023
• 2021 Fall AMC 10B Problems/Problem 18
  pair O,A1,B1,C1,A2,B2,C2,A3,B3,C3,A4,B4,C4; A1=dir(x); A2=dir(x+y); A3=dir(x+2y); A4=dir(x+3y);
  18 KB (3,011 words) - 22:05, 26 September 2023
• 2021 Fall AMC 12B Problems
  pair O,A1,B1,C1,A2,B2,C2,A3,B3,C3,A4,B4,C4; A1=dir(x); A2=dir(x+y); A3=dir(x+2y); A4=dir(x+3y);
  14 KB (2,191 words) - 19:57, 12 November 2023
• 2003 IMO Shortlist Problems/A3
  A3. Consider pairs of sequences of positive real numbers a1 ≥ a2 ≥ a3 ≥ ... , b1 ≥ b2 ≥ b3 ≥ ...
  531 bytes (81 words) - 08:39, 7 June 2022
• 2023 OIM Problems/Problem 5
  <cmath>P_{a1}P_{a2},P_{a2}P_{a3},\cdots,P_{an}P_{a1}</cmath>
  648 bytes (108 words) - 03:21, 14 December 2023
• 2024 AIME II Problems/Problem 15
  pair A1 = (cos(r),sin(r)); pair A2 = (cos(2r),sin(2r));
  8 KB (1,395 words) - 17:26, 9 February 2024

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