Mediafax
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Gândul îți propune, pentru astăzi, un test de inteligență pentru matematicieni: Calculează 2022-2022(2023-2022), fără a folosi calculatorul!
Ei bine, dacă ți se pare prea greu sau nu ai chef de făcut calcule, la această oră, nu te mai ținem în suspans. Iată rezolvarea:
Pentru a rezolva în cap, fără a apela la calculator, trebuie să facem un mic „artificiu” matematic. Și anume, să scoatem 2022 factor comun. Exercițiul devine:
2022-2022(2023-2022) =
2022(1-(2023-2022)) =
2022(1-1) =
0
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