1.
По теореме Виета :
x∈
2.
x∈∪∞
3.
x∈∞∪
4.
5.
x∈∞;∪
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x∈∪
1.
По теореме Виета :
x∈
2.
x∈∪∞
3.
x∈∞∪
4.
x∈
5.
x∈∞;∪
6. 0" class="latex-formula" id="TexFormula20" src="https://tex.z-dn.net/?f=%3E%200" title="> 0">
x∈∪