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Geolan1997
@Geolan1997
August 2022
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X+Y=1
1/x=x/y
Решите систему уравнения.
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IrkaShevko
Verified answer
Х + у = 1, у = 1 - х, ⇒ 1 - х = х², ⇒ х² +х -1 = 0 , ⇒
х = (-1+-√5)/2
у = х²
у =( (-1+-√5)/2 )² = (1+-2√5 +5)/4 =
(3+-√5)/2
1 votes
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Answers & Comments
Verified answer
Х + у = 1, у = 1 - х, ⇒ 1 - х = х², ⇒ х² +х -1 = 0 , ⇒х = (-1+-√5)/2у = х²
у =( (-1+-√5)/2 )² = (1+-2√5 +5)/4 = (3+-√5)/2