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If f(1) = 1, f'(1)=3, then the derivati...

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

A

33

B

12

C

9

D

15

Text Solution

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The correct Answer is:
A
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