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Question: Consider the function as representing the value of an ounce of silver in Indian rupees as a function of the time t in days. Find the average rates of change of R(t) over the time intervals [t, t+h], where t is as indicated and h = 1, 0.1, and 0.01 days. Hence, find the instantaneous rate of change of R at time t.
R(t) = 90t – 4t2; t = 3

h

1

0.1

0.01

Ave. rate

 

 

 

   R’(3) = ? 

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