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Alice098
@Alice098
December 2021
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Решите неравнство:
х^4+х^2+1
-------------- <0
х^2-4х-5
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Эксперт5
Verified answer
X⁴+x²+1>0 для любого х∈(-∞;+∞) => x²-4x-5<0
x²-4x-5<0
(x+1)(x-5)<0 (корни найдены по т .Виета)
+ - +
_______(-1)_________(5)________
x∈(-1;5)
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Answers & Comments
Verified answer
X⁴+x²+1>0 для любого х∈(-∞;+∞) => x²-4x-5<0x²-4x-5<0
(x+1)(x-5)<0 (корни найдены по т .Виета)
+ - +
_______(-1)_________(5)________
x∈(-1;5)