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Let f : R^+ ->R be defined as f(x)= x^2-...

Let `f : R^+ ->R` be defined as `f(x)= x^2-x +2 and g : [1, 2]->[1,2]` be defined as `g(x) = [x]+1.` Where [.] Fractional part function. If the domain and range of `f(g(x))` are `[a, b]` and `[c, d)` then find the value of `b/a + d/c.`

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