The formula for the sum s of the first n terms in a geometric sequence is given by , where a is the initial value and r is the common ratio. 1- S= a A drug is prescribed for a patient to take 200 mg every 12 hours for 10 days. After 12 hours about 4% of this dose is still in the body. How much of the drug is in the body right after the last dose?

The formula for the sum s of the first n terms in a geometric sequence is given by , where a is the initial value and r is the common ratio. 1- S= a A drug is prescribed for a patient to take 200 mg every 12 hours for 10 days. After 12 hours about 4% of this dose is still in the body. How much of the drug is in the body right after the last dose?

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Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence. It was invented by German mathematician Carl Friedrich Gauss.

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The formula for the sum s of the first n terms in a geometric sequence is given by
where a is the initial value and r is the common ratio.
A drug is prescribed for a patient to take 200 mg every 12 hours for 10 days. After 12
hours about 4% of this dose is still in the body. How much of the drug is in the body right
after the last dose?

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