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Question

If f(x)={x2,when x12,when x=1 then
  1. f(x) is discontinuous at x = 1
  2. None of these
  3. limx1f(x)=2
  4. f(x) is continuous at x = 1


Solution

The correct option is A f(x) is discontinuous at x = 1
limx1f(x)=1,f(1)=2

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