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MHT CET202016 Oct 2020Evening ShiftMathematicsContinuity and DifferentiabilityActual

The function f(x)= x+1 9 x+x³ is

Options

  1. Adiscontinuous at exactly two points.
  2. Bcontinuous for all real values of x .
  3. Cdiscontinuous at exactly three points.
  4. Ddiscontinuous at exactly one point.

Correct answer

D. discontinuous at exactly one point.

Step-by-step solution

(C) f(x)= x+1 9 x+x³ = x+1 x (9+x² ) The function is discontinuous at exactly one point i.e. x=0 .

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