< Reeller Betrag < Stetig
Zeige, dass die
Funktion
R
⟶
R
,
x
⟼
|
x
|
,
{\displaystyle \mathbb {R} \longrightarrow \mathbb {R} ,\,x\longmapsto \vert {x}\vert ,}
stetig
ist.
Eine Lösung erstellen
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