"This page serves as a database for problems and solutions from major mathematics competitions."
NRICH provides thousands of free online mathematics resources for ages 3 to 18, covering all stages of early years, primary and secondary school education - completely free and available to all."
Utskriven: 2025-05-09
Från sidan: Georgios Smedja i Fysik och Matematik
http://www.georgiostheodoridis.se/sv/sx_PrintPage.php?tid=190