If is a differential function and , use the

Authors:

James Stewart

Chapter:

Limits And Derivatives

Exercise:

Problems Plus

Question:12 | ISBN:9780538497909 | Edition: 7

If $f$ is a differential function and $g(x)=xf(x)$ , use the definition of a derivative to show that ${g}'(x)=x{f}'(x)+f(x)$ .

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