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Provide an Appropriate Response f(x)=x2f ( x ) = x ^ { 2 }

Question 546

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Provide an appropriate response.
-Consider the functions f(x)=x2f ( x ) = x ^ { 2 } and g(x)=x3g ( x ) = x ^ { 3 } and their linearizations at the origin. Over some interval εxε- \varepsilon \leq \mathrm { x } \leq \varepsilon , the approximation error for g(x)\mathrm { g } ( \mathrm { x } ) is less than the approximation error for f(x)\mathrm { f } ( \mathrm { x } ) for all x\mathrm { x } within the interval. Derive a reasonable approximation for the value of ε\varepsilon . Show your work. (Hint, the absolute value of the second derivative of each function gives a measure of how quickly the slopes of the function and its linear approximation are deviating from one another.)

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