Chapter 4: Problem 4
To which indeterminate forms does I'Hôpital's Rule apply directly?
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These are the key concepts you need to understand to accurately answer the question.
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Chapter 4: Problem 4
To which indeterminate forms does I'Hôpital's Rule apply directly?
These are the key concepts you need to understand to accurately answer the question.
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Suppose \(f(x)=1 /(1+x)\) is to be approximated near \(x=0\). Find the linear approximation to \(f\) at 0 . Then complete the following table showing the errors in various approximations. Use a calculator to obtain the exact values. The percent error is \(100 \cdot |\) approximation \(-\) exact \(|/|\) exact \(| .\) Comment on the behavior of the errors as \(x\) approaches 0 .
Locate the critical points of the following functions and use the Second Derivative Test to determine whether they correspond to local maxima, local minima, or neither. $$f(x)=x^{3}+2 x^{2}+4 x-1$$
Determine the following indefinite integrals. Check your work by differentiation. $$\int \frac{1+\sqrt{x}}{x} d x$$
Differentials Consider the following functions and express the relationship between a small change in \(x\) and the corresponding change in \(y\) in the form \(d y=f^{\prime}(x) d x\) $$f(x)=2-a \cos x, a \text { constant }$$
The functions \(f(x)=a x^{2},\) where \(a>0\) are concave up for all \(x\). Graph these functions for \(a=1,5,\) and 10, and discuss how the concavity varies with \(a\). How does \(a\) change the appearance of the graph?
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