The function f(x) =(x²-9)/3x², x0, is one-to-one. (a) Find its inverse and check your answer. (b) Find the domain and the range

Question

The function f(x) =(x²-9)/3x², x>0, is one-to-one.
(a) Find its inverse and check your answer. (b) Find the domain and the range of f and f^(-1).
(a) f^(-1)(x) =____________ (Simplify your answer.)

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The function f(x) =(x²-9)/3x², x>0, is one-to-one. (a) Find