Správné řešení třetího hlavolamu. Násobte Ludolfovo číslo Eulerovým číslem na exponent 3,7566 a číslicí 15 (F v šestnáctkové soustavě) a vyjde vám letošní letopočet.
(Autor obrázku – Patrik Hácha)
Zobrazit zadání třetího hlavolamu.
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