Question: DISCRETE MATH QUESTION Define a function: f:R - {0} -> R - {1} by the formula f(x) = (x+3)/x for all nonzero real numbers x.

DISCRETE MATH QUESTION

Define a function: f:R - {0} -> R - {1} by the formula f(x) = (x+3)/x for all nonzero real numbers x.

(a) Prove that f is one-to-one.

(b) Prove that f is onto.

(c) find f^(-1).

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