a Find the average rate of change of the area of a circle

Last updated: 10/9/2023

a Find the average rate of change of the area of a circle with respect to its radius r as r changes from 4 to each of the following 1 4 to 5 ii 4 to 4 5 iii 4 to 4 1 b Find the instantaneous rate of change when r 4 A 4