Drug concentration A certain drug is administered once a day. The concentration of the drug in the patient’s bloodstream increases rapidly at first, but each successive does has less effect than the preceding one. The total amount of the drug (in mg) in the bloodstream after the dose is given by
Find the amount of the drug in the bloodstream after days.
If the drug is taken on a long- term basis, the amount in the bloodstream is approximated by the infinite series Find the sum of this series.
The amount of drug in the patient’s bloodstream after days.
The total amount of drug in the bloodstream after the dose is
The partial sum of the geometric series is .
Calculate as below.
The sum of the series.
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