Let f(x)=x^(n) , n being a non-negative ...

Let `f(x)=x^(n)` , n being a non-negative integer, The value of `n` for which the equality `f'(x+y)=f'(x)+f'(y)` is valid for all `x,ygt0,` is

A

0,1

B

2

C

2,4

D

None of these

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The correct Answer is:

B

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