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Emil08N
@Emil08N
July 2022
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Решите систему уравнений:
\left \{ [/tex]x+y=1
xy=-2[tex]
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melida6767
{х+у=1{х-у=-2выразим х через у. х=1-у подставим во второе уравнениеу(1-у)=-2у-у^2+2=0 решим кв уравнениеу=2у=-1найдем хх= 1-2=-1. х=1-(-1)=2.ответ. (-1;2);(2;-1)
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