The function f : R → R defined by f (x) = (x – 1) (x – 2) (x – 3) is

Mathematics · JEE Main · NTA Exams — Sets, Relations and Functions

1. one-one but not onto
2. onto but not one-one
3. both one-one and onto
4. neither one-one nor onto

Answer

(B) onto but not one-one

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