Součty přirozených mocnin 10 v několika úlohách
Rozhledy matematicko-fyzikální, Tome 84 (2009) no. 3, pp. 51-54
Citer cet article
Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
Formula for the sum of the first n members of a geometric sequence with common ratio 10 is derived. Then, certain interesting properties of several natural numbers are demonstrated in six examples.
Formula for the sum of the first n members of a geometric sequence with common ratio 10 is derived. Then, certain interesting properties of several natural numbers are demonstrated in six examples.