CSC 156 Spring 2026 - Homework 9 (100 pts. total)
Assigned Mon Apr 20, due Mon Apr 27
BEFORE STARTING THIS ASSIGNMENT:
Before starting the exercises given below for each section, please make sure to read each section and check your understanding (by doing the participation exercises and those additional exercises with answers provided).
FOR ALL QUESTIONS IN THIS ASSIGNMENT:
Answer each question. *Make sure to justify your answer for all questions. Do NOT just state the answer.*
THE ASSIGNMENT:
Complete the following exercises from the ZyBook and submit only the Additional Exercises through
the HW9 link on Moodle. [Remember from the Syllabus that "you must include justification for each answer", so for each and every
question, do NOT just state the
answer. Also, please note that copying the question does NOT count as justification for your answer, and you are NOT required to copy the question.]
I. Section 6.1 Exercises
[15 pts. ] All Participation Activities ( Activities 1 to 7 )
[10 pts.] Question 1: For the sequence an = 5, 15, ...
a) Suppose an is an arithmetic sequence. What is the common difference? What are the next three terms?
b) Suppose an is a geometric sequence. What is the common ratio? What are the next three terms?
[ 5 pts. ] Additional Exercises: #1b (+ 6 pts. extra credit: #4be)
II. Section 6.2 & Supplement 4 Exercises
[ 5 pts. ] Participation Activities 1, 2, and 3 ONLY
[15 pts.] Additional Exercises: #1b,2a,3a
[10 pts.] Question 2: For the sequence cj=j2-1, find the value of
.
III. Section 6.3 & Supplement 5 Exercises
[ 8 pts. ] All Participation Activities ( Activities 1 to 4 )
[24 pts.] Additional Exercises: #1a,1c,2a [Hint for #2a: See Example 3 in the PowerPoint slides for Section 6.3]
[ 8 pts. ] Question 3: Given the recursively defined function: f(n) = n • f(n-1) + 2 with f(1) = 5, find f(4).
Last Modified: 4/18/26