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Black Book Advanced Problems in MathematicsMathematicsApplication of Derivatives

**Paragraph for Question Nos. 1 to 2** Let y = f(x) such that xy = x + y + 1 , x R - 1 and g(x) = x f(x) The minimum value of g(x) is :

Options

  1. A3 - 2
  2. B3 + 2
  3. C3 - 2 2
  4. D3 + 2 2

Correct answer

D. 3 + 2 2

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