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Let fn(x) be the n^(th) derivative of f(...

Let `f_n(x)` be the `n^(th)` derivative of f(x).the least value of n so that `f_n=f_(n+1)` where `f(x)=x^2+e^x` is

A

4

B

5

C

2

D

3

Text Solution

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The correct Answer is:
D
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