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Riešenie rovnice v reálnych číslach
Rieš v \( \mathbb{R} \) rovnicu \( (x \sqrt{2}-x-1)(\pi x+\sqrt{2})\left(x^{2}+1\right)=0 \).
\( K=\left\{-\frac{\sqrt{2}}{\pi} ; \sqrt{2}+1\right\} \)
\( K=\left\{\frac{\sqrt{2}}{\pi} ; 1-\sqrt{2}\right\} \)
\( K=\left\{-\frac{\sqrt{2}}{2} ; \pi+1\right\} \)
\( K=\left\{-\frac{1}{\pi} ; \sqrt{2}-1\right\} \)