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Black Book Advanced Problems in MathematicsMathematicsFunctions

Solution of the inequation x ( x - 1)( x + 2) >= 0 (where . denotes fractional part function) is :

Options

  1. Ax in (-2, 1)
  2. Bx in I (I denote set of integers)
  3. Cx in [0, 1)
  4. Dx in [-2, 0)

Correct answer

B. x in I (I denote set of integers)

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