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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

The range of k for which the inequality k ^2x - k x + 1 0 x (- , ) is :

Options

  1. Ak > -1/2
  2. Bk > 4
  3. C-1/2 k 4
  4. D1/2 k 5 .

Correct answer

C. -1/2 k 4

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