Let f: R → R be defined by f(x) = 1/x ∀ x ∈ R. Then f is ______.

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Let f: R → R be defined by f(x) = 1/x ∀ x ∈ R. Then f is f is not defined. Explanation: We have, f(x) = 1/x ∀ x ∈ R For x = 0, f(x) is not defined. Hence, f(x) is a not define function.

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