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Ułamki algebraiczne i funkcje wymierne
(2009)
The subject-matter of this article can be divided into three main
parts. The first one includes the theoretical problems concerning the fields
of algebraic fractions and rational functions. In the second part we deal
with ...
O różnych sposobach definiowania wartości bezwzględnej liczby rzeczywistej
(2009)
In this article we present some didactic ideas of introducing the
absolute value of a real number by means of functional equations and an
inequality. The basic properties of the absolute value of a real number are
written ...