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denliverpool95
@denliverpool95
August 2022
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Не развязывая уравнения найдите значение выражения 1 / х1 + 1 / х2, если х1 и х2 - корни уравнения :
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ВикаВикторовна
Verified answer
1 / х1 + 1 / х2 = х2+х1 / х1*х2 = -b/c
1) 4x²-9x+3=0
1 / x1 + 1 / x2 = 9/3 = 3
2) 2x²-5x+2=0
1 / x1 + 1 / x2 = 5/2 = 2,5
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Answers & Comments
Verified answer
1 / х1 + 1 / х2 = х2+х1 / х1*х2 = -b/c1) 4x²-9x+3=0
1 / x1 + 1 / x2 = 9/3 = 3
2) 2x²-5x+2=0
1 / x1 + 1 / x2 = 5/2 = 2,5