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Black Book Advanced Problems in MathematicsMathematicsFunctions

Let f : R R and f(x) = x(x^4 + 1)(x + 1) + x^4 + 2 x^2 + x + 1 , then f(x) is :

Options

  1. AOne-one, into
  2. BMany one, onto
  3. COne-one, onto
  4. DMany one, into

Correct answer

D. Many one, into

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