Test Academy | Let f : R → R be defined by f (x) = 1/x ∀ x ∈ R. Then f is one-one, onto, bijective, f is not defined

Question

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

Options :

one-one
onto
bijective
f is not defined

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