Fundamentholfundamenthol
JEE Main2019Math
Q.

If f(1) = 1, f(1) = 3, then the derivative of f(f(f(x))) + (f(x))2 at x = 1 is : 

  1. A

    33

  2. B

    12

  3. C

    9

  4. D

    15 

Solution

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