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Let f be a differentiable function such that f

1. = 2 and f '(x) = f(x) for all x ∈ R. If h(x) = f(f(x)), then h'
2. is equal to :
3. 4e
4. 2e 2 (3) 4e 2 (4) 2e

Correct answer: = 2 and f '(x) = f(x) for all x ∈ R. If h(x) = f(f(x)), then h'

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