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Black Book Advanced Problems in MathematicsMathematicsLimits

Let f(x) = ⁻¹ (1 - x ) ⁻¹ (1 - x ) 2 x (1 - x ) where x denotes the fractional part of x , then :

Options

  1. A(a) _ x 0^+ f(x) = 4
  2. B(b) _ x 0^+ f(x) = 2 _ x 0^- f(x)
  3. C(c) _ x 0^- f(x) = 4 2
  4. D(d) _ x 0^- f(x) = 2 2

Correct answer

B. (b) _ x 0^+ f(x) = 2 _ x 0^- f(x)

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