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Definice funkce f
\( f: y=\left(\frac{1}{x+3}\right)^{2}, D(f)=\mathbb{R}-\{3\} \)
\( f: y=\left(\frac{1}{x+2}\right)^{2}, D(f)=\mathbb{R}-\{0\} \)
\( f: y=\left(\frac{1}{x+3}\right), D(f)=\mathbb{R}-\{0\} \)
\( f: y=\left(\frac{1}{x+3}\right)^{2}, D(f)=\mathbb{R}-\{0\} \)