Math 106-01: Calculus II: Reading Homework 9.4

1. Geometric Series :
   
   1. Drug Example : how are the expressions for Q₁, Q₂, etc., are derived for the drug dosage example?
      
      1. closed form expression : how is the closed form expression for Q_n derived? what is it?
         
   2. Geometric Series : what is a geometric series? what is the difference between a finite and infinite geometric series?
      
      1. sum of a finite series : what is the sum of a finite geometric series? how is it derived?
         
      2. sum of an infinite series : what is the sum of an infinite geometric series? how is it derived?
         
   3. Taylor Series : how are Taylor series and geometric series related?