Create the page "Just rk" on this wiki! See also the search results found.

• 2012 IMO Problems/Problem 5
  ...same way <math>\angle BKR = 90^{\circ}</math>. Therefore, the lines <math>RK</math> and <math>RL</math> are tangent to <math>\Gamma'</math> and <math>\G ...ma'</math> and <math>\Gamma''</math>, <math>RK^2 = RL^2</math>, Thus <math>RK = RL</math>. Since <math>RM</math> is in the middle and <math>\angle ADR =
  2 KB (437 words) - 08:30, 20 November 2023
• 1962 AHSME Problems/Problem 31
  ...oth more than <math>2</math>, we know that <math>6-k < r+4</math>. Now, we just set these factors equal to the factors of 24. We can set <math>6-k</math> t
  2 KB (261 words) - 18:19, 25 March 2021
• 2005 JBMO Problems/Problem 4
  c = rk
  817 bytes (173 words) - 22:34, 11 April 2019
• 2017 IMO Problems/Problem 4
  ...>AJST</math> is cyclic <math>\implies \angle RSJ = \angle TAJ \implies AT||RK.</math> ...h>K'</math> is image K at this inversion <math>\implies K \in RK' \implies RK'||AT \implies ARK'T</math> is parallelogram.
  4 KB (681 words) - 01:41, 19 November 2023