December 2019 1 24 Report
Observe a equação a seguir:

x^2-4m^2x+m^2=0

Para que essa equação não tenha raízes reais, a seguinte condição deve ser satisfeita

a)- \dfrac{1}{2} \ \textless \ m\ \textless \ \dfrac{1}{2}

b) m \neq 1

c) m \ \textless \ - \dfrac{1}{2}

d)- \dfrac{1}{2} \ \textless \ m\ \textless \ 0\ ou\ 0\ \textless \ m\ \textless \ \dfrac{1}{2}

e)\ m \neq 1\ e\ -\dfrac{1}{2} \ \textless \ m\ \textless \ \dfrac{1}{2}
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