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• 1998 USAMO Problems/Problem 2
  == Problem == C1=circle(O,2);
  4 KB (656 words) - 17:26, 20 June 2019
• 1997 IMO
  ...k contains the full set of test problems. The rest contain each individual problem and its solution. **[[1997 IMO Problems/Problem 1 | Problem 1]]
  684 bytes (80 words) - 19:05, 4 July 2024
• 1998 IMO
  ...k contains the full set of test problems. The rest contain each individual problem and its solution. *[[1998 IMO Problems|Entire Test]]
  674 bytes (78 words) - 21:52, 4 July 2024
• 1999 IMO
  ...k contains the full set of test problems. The rest contain each individual problem and its solution. **[[1999 IMO Problems/Problem 1 | Problem 1]]
  678 bytes (78 words) - 22:09, 4 July 2024
• 1998 USAMO Problems/Problem 6
  == Problem == ...which exactly <math>k</math> of the quadrilaterals <math>A_{i}A_{i+1}A_{i+2}A_{i+3}</math> have an inscribed circle. (Here <math>A_{n+j} = A_{j}</math>
  5 KB (871 words) - 18:59, 10 May 2023
• 1999 USAMO Problems
  ===Problem 1=== Prove that at least <math>(n^{2}-2)/3</math> checkers have been placed on the board.
  3 KB (465 words) - 13:35, 4 July 2013
• User:Gaussian
  [[1983 AIME Problems/Problem 1]] [[1983 AIME Problems/Problem 2]]
  24 KB (2,505 words) - 16:46, 19 March 2014
• User:RTG
  **** 1998 Competition [[1998 CEMC Gauss (Grade 7) Problems]]
  6 KB (770 words) - 00:51, 26 October 2014
• 1999 CEMC Gauss (Grade 7)
  ...contains the full set of test problems. The rest contain each individual problem and its solution. * [[1999 CEMC Gauss (Grade 7) Problems/Problem 1]]
  2 KB (179 words) - 00:16, 26 October 2014
• 1998 CEMC Gauss (Grade 7)
  ...contains the full set of test problems. The rest contain each individual problem and its solution. * [[1998 CEMC Gauss (Grade 7) Answer Key]]
  2 KB (181 words) - 00:17, 26 October 2014
• 1998 CEMC Gauss (Grade 7) Problems
  ...ing, consult the pdf: https://www.cemc.uwaterloo.ca/contests/past_contests/1998/1998Gauss7Contest.pdf == Problem 1 ==
  10 KB (1,590 words) - 16:43, 29 January 2021
• 1999 CEMC Gauss (Grade 7) Problems
  == Problem 1 == [[1998 CEMC Gauss (Grade 7) Problems/Problem 1|Solution]]
  5 KB (621 words) - 00:50, 26 October 2014
• 1998 IMO Problems/Problem 2
  ==Problem== {c_i \choose 2} + {{b - c_i} \choose 2} &= \frac{1}{2}\left(c_i(c_i - 1) + (b - c_i)(b - c_i - 1) \right) \\
  2 KB (307 words) - 22:01, 4 July 2024
• 1998 IMO Problems/Problem 3
  ===Problem=== <math>d(n^2)/d(n) = k</math> for some <math>n</math>.
  3 KB (571 words) - 02:39, 17 September 2024
• 1998 IMO Problems/Problem 5
  ==Problem== ...l to 90 degrees). IS^2-BS^2 = IB^2. So we have to prove that 2*(IB^2)>2*(x^2), and this is true because triangle IMB is a right triangle with IB hypoten
  1 KB (227 words) - 09:33, 27 July 2024
• 1998 IMO Problems/Problem 6
  ==Problem== Determine the least possible value of <math>f(1998),</math> where <math>f:\Bbb{N}\to \Bbb{N}</math> is a function such that fo
  454 bytes (73 words) - 01:54, 28 August 2024

• File:1998ajhsme-13-2.png 1998 AJHSME Problem 13 Solution 2 (129 × 131 (2 KB)) - 00:14, 31 March 2015

• 1997 JBMO Problems
  ==Problem 1== [[1997 JBMO Problems/Problem 1#Solution|Solution]]
  2 KB (245 words) - 22:44, 14 September 2023
• Template:JBMO box
  ...nbsp;by<br/>}}}'''{{{before|[[{{{year}}} JBMO Problems/Problem {{{num-b}}}|Problem {{{num-b}}}]]}}}''' ...&nbsp;by<br/>}}}'''{{{after|[[{{{year}}} JBMO Problems/Problem {{{num-a}}}|Problem {{{num-a}}}]]}}}'''
  2 KB (257 words) - 00:02, 4 August 2018
• 1997 JBMO
  * [[1997 JBMO Problems/Problem 1 | Problem 1]] * [[1997 JBMO Problems/Problem 2 | Problem 2]]
  596 bytes (61 words) - 16:10, 17 September 2017

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