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Black Book Advanced Problems in MathematicsMathematicsFunctions

Range of the function f(x) = ⁻¹( -x ) + ⁻¹ x + ⁻¹ x , where denotes fractional part function :

Options

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

Correct answer

D. ( 3 4 , ]

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