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Which of the following function(s) defin...

Which of the following function(s) defined below has/have single point continuity.`f(x)=[1, if x in Q and 0 if x !in Q`

A

`f(x) = [{:(1, if x in Q),(0, if x cancel(in) Q):}`

B

`g(x) = [{:(x, if x in Q),(1-x, if x cancel(in)Q):}`

C

`h(x) =[{:(x, if x in Q),(0, if cancel(in)Q):}`

D

`k(x) = [{:(x, if x in Q),(-x, if x cancel(in)Q):}`

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The correct Answer is:
B, C, D
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MOTION-CONTINUITY -EXERCISE -2 (LEVEL -II) SINGLE POINT DISCONTINUITY
  1. Which of the following function(s) defined below has/have single point...

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