JEE Main 2019 · 8 April · Shift II

JEE Main 2019 Mathematics question on Limits Continuity and Differentiability

If f(1)=1f(1) = 1, f′(1)=3f'(1) = 3, then the derivative of f(f(f(x)))+(f(x))2f(f(f(x))) + (f(x))^2 at x=1x = 1 is
  1. A.
    12
  2. B.
    9
  3. C.
    15
  4. D.
    33
Show answer

Correct option: D

[JEE Main 2019 · 8 April · Shift II]

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