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Home > PC3 > Chapter 12 > Lesson 12.1.2 > Problem 12-27

12-27.

Calculate each of the following sums.

  1.  

    This is an arithmetic series with a common difference of .


    and are given in the problem.
    You need to determine , which is the number of terms.

  2.  

  3.  

    Parts (b) and (c) are geometric series.