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Problem 67

# Jewelry A jeweler resizes a ring so that its inner circumference is 6 centimeters.(a) What is the radius of the ring?(b) The inner circumference of the ring varies between 5.5 centimeters and 6.5 centimeters. How does the radius $\quad$ vary?(c) Use the $\varepsilon-\delta$ definition of limit to describe this situation. Identify $\varepsilon$ and $\delta .$

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