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Brunaxxxx
@Brunaxxxx
December 2019
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Para que valores reais de K a função f(x)=k x²-5x+4 admite zeros reais iguais?
Δ=0
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Jayrobeys
Para admitir raízes ou zeros iguais, delta deve ser igual a zero
Δ = 0
Δ = b² - 4kc
0 = (-5)² - 4.k.4
0 = 25 - 16k
16k = 25
k = 25 / 16
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Δ = 0
Δ = b² - 4kc
0 = (-5)² - 4.k.4
0 = 25 - 16k
16k = 25
k = 25 / 16