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IKMC 2013 - Grades 11-12 - Paper 01 - Self-study Question 24

IKMC · IKMC 2013 - Grades 11-12 - Paper 01 - Self-study

Question 24

How many real pairs $(x,y)$ solve $x^2+y^2=|x|+|y|$?
  1. 1
  2. 5
  3. 8
  4. 9
  5. Infinitely many