Задание
или
Запишите системы квадратичных неравенств, эквивалентных биквадратному неравенству:
\(\displaystyle x^4-13x^2+22\lt 0{\small.}\)
\(\displaystyle \left\{ \vphantom{\begin{aligned} 1\\[10px] 1 \end{aligned}} \right. \) | \(\displaystyle x^2\)[?|≤|≥|=|>|<][ ], |
\(\displaystyle x^2\)[?|≤|≥|=|>|<][ ] |
\(\displaystyle \left\{ \vphantom{\begin{aligned} 1\\[10px] 1 \end{aligned}} \right. \) | \(\displaystyle x^2\)[?|≤|≥|=|>|<][ ], |
\(\displaystyle x^2\)[?|≤|≥|=|>|<][ ]. |