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Black Book Advanced Problems in MathematicsMathematicsApplication of Derivatives

Let f(x) = ⁻¹ ( 1 - x 1 + x ) . Then difference of the greatest and least value of f(x) on [0, 1] is :

Options

  1. A/2
  2. B/4
  3. C/3

Correct answer

B. /4

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