(UFRGS - 2017) Dadas as funes f e g, definidas por
(UFRGS - 2017) Dadas as funções f e g, definidas por f(x) = x2 + 1 e g(x) = x, o intervalo tal que f(x) > g(x) é:
A
\((\frac{-1-\sqrt{5}}{2},\frac{-1+\sqrt{5}}{2})\)
B
\((-\infty,\frac{-1-\sqrt{5}}{2})\cup(\frac{-1+\sqrt{5}}{2},+\infty)\)
C
\((-\infty,\frac{1-\sqrt{5}}{2})\cup(\frac{1+\sqrt{5}}{2},+\infty)\)
D
\((\frac{1-\sqrt{5}}{2},\frac{1+\sqrt{5}}{2})\)
E
\((-\infty,+\infty)\)
