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NEST2020MathematicsFunctions

Let f: R R be a function defined by f(x)=|x|+2 x for x R . Then f is

Options

  1. Aone-to-one but not onto
  2. Binvertible and f⁻¹(x)=-|x|+ x 2 for x R
  3. Conto but not one-to-one
  4. Dinvertible and f⁻¹(x)=- |x| 3 + 2 x 3 for x R

Correct answer

D. invertible and f⁻¹(x)=- |x| 3 + 2 x 3 for x R

Step-by-step solution

No solution available.

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