Posted by **Naina** on Sunday, February 28, 2010 at 1:39pm.

This limit represents the derivative of some function f at some number a. Select an appropriate f and a.

lim_(h->0) (root4(256+h)-4)/h

1

f(x) = x^4, a = 4

f(x) = x^1/4, a = 4

f(x) = x^1/4, a = 256

f(x) = √x, a = 256

f(x) = √x, a = 16

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