Lesson 27.

NOTE 1: Be sure to read  Homework Format  and Homework Writing Policy  BEFORE writing up your solutions to be turned in.

NOTE 2: When two or more Lessons are to be turned in on the same day, please staple the Lessons separately and turn them in separately.

Due Monday, July 7

Last modified Jul 6, 2008 1:46 PM

Chapter 8:
Problems 1-4 were handed out in class on Wednesday, July 2, and are available as a pdf document, Sums and DurationProblem 5 is below.

Hint for Problem 2 (the case n = 2): Use the fact that  r-1  is a factor of  2r3 - 3r2 +1.

5.  In Problem 3, you are asked to prove a certain formula by induction. To be sure that you understand how induction “works”, complete the following:
We are given a statement  Π(n)  and we want to prove that it is true for (in a simple case) all integers  n ≥ 1.

Suppose we know that (i.e., we can prove that)
  1. [basic step] _______________________________
  2. [inductive step] for all integers  n ≥ 1,  _______________________________
Then we can conclude that for all integers  n ≥ 1,  _______________________________ .


NOTE: As stated on the Course Home Page, all due dates are tentative. Assignments, or parts of assignments, may be postponed to a later date.


Last modified Jul 6, 2008 1:46 PM

Go to Lesson 25a (due 7/8).

Go to Lesson 26a (due 7/9).

Go to Lesson 28 (due 7/8).

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