Question: Let f(x) = x5 + 2x3 + 4x, - < x < (a) Prove that f has an inverse g = f-1 (b) Evaluate

Let f(x) = x5 + 2x3 + 4x, -∞ < x < ∞
(a) Prove that f has an inverse g = f-1
(b) Evaluate g(7) = f-1(7)
(c) Evaluate g'(7)

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