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Let f(x)a n dg(x) be two continuous func...

Let `f(x)a n dg(x)` be two continuous functions defined from `RvecR` , such that `f(x_1)` > `f(x_2)` and `g(x_1)` < `g(x_2)` `for all` `x_1`>`x_2` `dot` Then what is the solution set of `f(g(alpha^2-2alpha)` > `f(g(3alpha-4))`

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