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If f(1)=2, f\'(x)=f(x) and h(x)=fof(x) t...

If `f(1)=2, f\'(x)=f(x)` and `h(x)=fof(x)` then `h'\(1)` is equal to (A) `4e` (B) `2e^2` (C) `4e^2` (D) `e^2`

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