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Black Book Advanced Problems in MathematicsMathematicsFunctions

Let f(x) = ⁻¹ x - ⁻¹ x , then the set of values of k for which of |f(x)| = k has exactly two distinct solutions is :

Options

  1. A( 0, 2 ]
  2. B( 0, 2 )
  3. C[ 2 , 3 2 )
  4. D[ , 3 2 ]

Correct answer

A. ( 0, 2 ]

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