Odredi duljinu skupa

gdje je

prirodna domena funkcije
Determine the length of the set

where

is the natural domain of the function
[lang=hr]
Odredi duljinu skupa \(S = \left\langle \dfrac{1}{5}, 1 \right\rangle \cap D\) gdje je \(D\) prirodna domena funkcije
\[f(x) = \sqrt{(-1)^{\left \lfloor \dfrac{1}{x} \right \rfloor }}.\]
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[lang=en]
Determine the length of the set \(S = \left\langle \dfrac{1}{5}, 1 \right\rangle \cap D\) where \(D\) is the natural domain of the function
\[f(x) = \sqrt{(-1)^{\left \lfloor \dfrac{1}{x} \right \rfloor }}.\]
[/lang]