
Concept explainers
To find: The explanation terms of the geometry why the instantaneous rate of change of the area with respect to radius should equal the circumference.

Answer to Problem 49E
The explanation terms of the geometry why the instantaneous rate of change of the area with respect to radius should equal the circumference is obtained.
Explanation of Solution
Given Data:
The area of the circle is
The given function is,
Calculation:
The rate of change of the area with the radius is
Consider that the area of the circle is divided in the smaller segments of the circumference
Chapter 3 Solutions
Calculus: Graphical, Numerical, Algebraic
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