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Let f(x) = \sqrt[3] x. The equation of the tangent line to f(x) at x = 125 is y = . Using this, we find our approximation for \sqrt[3] {125.4} is

4 answers

df = √3 dx
so, plug in dx=.4 to see how much f has increased

it says that it's wrong

so, what did you plug in? What was your final answer?

1.2

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