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Black Book Advanced Problems in MathematicsMathematicsFunctions

Let f : R R , f(x) = x^3 + x^2 + 3x + x , then f is :

Options

  1. AOne-one and into
  2. BOne-one and onto
  3. CMany-one and into
  4. DMany-one and onto

Correct answer

B. One-one and onto

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