Fie \( f, \ g \ : \ \mathbb{R} \to \mathbb{R} \), \( f \circ g = g \circ f = -\mathrm{id} \).
(a) Aratati ca functiile sunt impare.
(b) Dati un exemplu care sa verifice proprietatea din enunt.
[ Olimpiada Judeteana 2009, Problema 1]
Compuneri de functii impare
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Compuneri de functii impare
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