Let A = [–1, 1] and f : A → A be defined as f (x) = x |x| for all x ∈ A, then f (x) is

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

1. many-one into function
2. one-one into function
3. many-one onto function
4. one-one onto function

Answer

(D) one-one onto function

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