Explicaê

01

(AFA) Considere as funções reais f, g e h tais que

F(X) = mx² - (m+2)x + (m + 2)

g(x) = 1/x

h(x) = √x

Para que a função composta h ᵒ g ᵒ f(x) tenha domínio D = R, deve-se ter:

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