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Riešenie nerovnice s tangensom
Vyrieš v \( \mathbb{R} \) nerovnicu \( \operatorname{tg} x \leq \frac{\sqrt{3}}{3} \).
\( K=\bigcup_{k \in \mathbb{Z}}\left(\frac{\pi}{3}+k \pi ; \frac{7 \pi}{6}+k \pi\right) \)
\( K=\bigcup_{k \in \mathbb{Z}}\left(\frac{\pi}{2}+k \pi ; \frac{11 \pi}{6}+k \pi\right) \)
\( K=\bigcup_{k \in \mathbb{Z}}\left(\frac{\pi}{2}+k \pi ; \frac{7 \pi}{6}+k \pi\right) \)
\( K=\bigcup_{k \in \mathbb{Z}}\left(\frac{\pi}{2}+k \pi ; \frac{5 \pi}{6}+k \pi\right) \)