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BITSAT2011MathematicsFunctionsActual

If (f(x)= array l x ; when x is rational 1-x ; when x is irrational array . ), then fof ((x) ) is given as

Options

  1. A1
  2. B( x )
  3. C(1+ x )
  4. DNone of these

Correct answer

B. ( x )

Step-by-step solution

( aligned & f o f(x)= array l f(x) ; when f(x) is rational 1-f(x) ; when f(x) is irrational array . & = array l x ; when x is rational 1-(1- x ) ; when x is irrational array = x . & aligned )

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