(Section 2.1: An Introduction to Limits) 2.1.16 What’s the bottom line? Does it matter what happens to a functionfat aor not when we evaluate limits like limx±afx()?In theory, we’re not supposedto care what happens to the function at x=a. Often, though, it helpsto know what happens at x=a. For example, if we have a rational functionfthat has ain its
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