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NDA2017MathematicsContinuity and DifferentiabilityActual

Consider the following : 1. x + x ^2 is continuous at x =0 2. x + 1 x is discontinuous at x =0 3. x^2+ 1 x is continuous at x=0 Which of the above are correct?

Options

  1. A1 and 2 only
  2. B2 and 3 only
  3. C1 and 3 only
  4. D1,2 and 3

Correct answer

A. 1 and 2 only

Step-by-step solution

x + x ^2 is continuous at x =0 x + 1 x is discontinuous at x =0x^2+ 1 x is not continuous at x=0 .

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