JEE Main & Advanced Sample Paper JEE Main Sample Paper-19

  • question_answer If\[f(x)=|x-2|\] and \[g(x)=f(f(x))\]then for\[x>10,\,\,g'(x)\]equal

    A) \[-1\]                                    

    B) \[0\]

    C) \[1\]                                     

    D) \[2x-4\]

    Correct Answer: C

    Solution :

     For\[x>10,\,\,f(x)=x-2\] Therefore,\[g(x)=x-2-2=x-4\] \[\therefore \]  \[g'(x)=1\]

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