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KCET2018MathematicsDifferentiation

Let ( f(x)=x- 1 x ) then ( f^ (-1) ) is

Options

  1. A( 00 )
  2. B( 12 )
  3. C( 11 )
  4. D( -2 )

Correct answer

B. ( 12 )

Step-by-step solution

Given that, ( f(x)=x- 1 x ) So, ( f^ (x)=1+ 1 x² ) ( f^ (-1)=1+ 1 (-1)² =1+1=2 )

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