Elements Of Modern Algebra
8th Edition
ISBN: 9781285965918
Author: Gilbert
Publisher: Cengage
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 5.1, Problem 7E
Exercises
Find all zero divisors in ℤn
for the following values of n a. n=6 b. n=8
n=10
d. n=12
n=14
f. n
a prime integer
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Kate, Luke, Mary and Nancy are sharing a cake. The cake had previously been divided into four slices (s1, s2, s3 and s4). The following table shows the values of the slices in the eyes of each player. What is fair share to nancy?
S1
S2
S3
S4
Kate
$4.00
$6.00
$6.00
$4.00
Luke
$5.30
$5.00
$5.25
$5.45
Mary
$4.25
$4.50
$3.50
$3.75
Nancy
$6.00
$4.00
$4.00
$6.00
Kate, Luke, Mary and Nancy are sharing a cake. The cake had previously been divided into four slices (s1, s2, s3 and s4). The following table shows the values of the slices in the eyes of each player.
S1
S2
S3
S4
Kate
$4.00
$6.00
$6.00
$4.00
Luke
$5.30
$5.00
$5.25
$5.45
Mary
$4.25
$4.50
$3.50
$3.75
Nancy
$6.00
$4.00
$4.00
$6.00
how much is the cak worth to mary
Kate, Luke, Mary and Nancy are sharing a cake. The cake had previously been divided into four slices (s1, s2, s3 and s4). The following table shows the values of the slices in the eyes of each player. What is the threshold of fair share for Luke?
S1
S2
S3
S4
Kate
$4.00
$6.00
$6.00
$4.00
Luke
$5.30
$5.00
$5.25
$5.45
Mary
$4.25
$4.50
$3.50
$3.75
Nancy
$6.00
$4.00
$4.00
$6.00
Chapter 5 Solutions
Elements Of Modern Algebra
Ch. 5.1 - True or False
Label each of the following...Ch. 5.1 - True or False Label each of the following...Ch. 5.1 - True or False Label each of the following...Ch. 5.1 - True or False
Label each of the following...Ch. 5.1 - True or False Label each of the following...Ch. 5.1 - True or False Label each of the following...Ch. 5.1 - True or False Label each of the following...Ch. 5.1 - True or False
Label each of the following...Ch. 5.1 - True or False Label each of the following...Ch. 5.1 - True or False Label each of the following...
Ch. 5.1 - Exercises
Confirm the statements made in Example...Ch. 5.1 - Exercises
2. Decide whether each of the following...Ch. 5.1 - Exercises
3. Let Using addition and...Ch. 5.1 - Prob. 4ECh. 5.1 - Exercises
5. Let Define addition and...Ch. 5.1 - Exercises Work exercise 5 using U=a. Exercise5 Let...Ch. 5.1 - Exercises Find all zero divisors in n for the...Ch. 5.1 - Exercises
8. For the given values of , find all...Ch. 5.1 - Exercises Prove Theorem 5.3:A subset S of the ring...Ch. 5.1 - Exercises
10. Prove Theorem 5.4:A subset of the...Ch. 5.1 - Assume R is a ring with unity e. Prove Theorem...Ch. 5.1 - 12. (See Example 4.) Prove the right distributive...Ch. 5.1 - 13. Complete the proof of Theorem by showing that...Ch. 5.1 - Let R be a ring, and let x,y, and z be arbitrary...Ch. 5.1 - 15. Let and be elements of a ring. Prove that...Ch. 5.1 - 16. Suppose that is an abelian group with respect...Ch. 5.1 - If R1 and R2 are subrings of the ring R, prove...Ch. 5.1 - 18. Find subrings and of such that is not a...Ch. 5.1 - 19. Find a specific example of two elements and ...Ch. 5.1 - Prob. 20ECh. 5.1 - 21. Define a new operation of addition in by ...Ch. 5.1 - 22. Define a new operation of addition in by and...Ch. 5.1 - Let R be a ring with unity and S be the set of all...Ch. 5.1 - Prove that if a is a unit in a ring R with unity,...Ch. 5.1 - Prob. 25ECh. 5.1 - Prob. 26ECh. 5.1 - Suppose that a,b, and c are elements of a ring R...Ch. 5.1 - Prob. 28ECh. 5.1 - 29. For a fixed element of a ring , prove that...Ch. 5.1 - Prob. 30ECh. 5.1 - Let R be a ring. Prove that the set S={...Ch. 5.1 - 32. Consider the set .
a. Construct...Ch. 5.1 - Consider the set S={ [ 0 ],[ 2 ],[ 4 ],[ 6 ],[ 8...Ch. 5.1 - The addition table and part of the multiplication...Ch. 5.1 - 35. The addition table and part of the...Ch. 5.1 - Prob. 36ECh. 5.1 - 37. Let and be elements in a ring. If is a zero...Ch. 5.1 - An element x in a ring is called idempotent if...Ch. 5.1 - 39. (See Exercise 38.) Show that the set of all...Ch. 5.1 - 40. Let be idempotent in a ring with unity....Ch. 5.1 - 41. Decide whether each of the following sets is...Ch. 5.1 - 42. Let .
a. Show that is a...Ch. 5.1 - 43. Let .
a. Show that is a...Ch. 5.1 - 44. Consider the set of all matrices of the...Ch. 5.1 - Prob. 45ECh. 5.1 - 46. Let be a set of elements containing the unity,...Ch. 5.1 - Prob. 47ECh. 5.1 - Prob. 48ECh. 5.1 - An element a of a ring R is called nilpotent if...Ch. 5.1 - 50. Let and be nilpotent elements that satisfy...Ch. 5.1 - Let R and S be arbitrary rings. In the Cartesian...Ch. 5.1 - 52. (See Exercise 51.)
a. Write out the...Ch. 5.1 - Prob. 53ECh. 5.1 - Prob. 54ECh. 5.1 - Prob. 55ECh. 5.1 - Suppose R is a ring in which all elements x are...Ch. 5.2 - True or False
Label each of the following...Ch. 5.2 - [Type here]
True or False
Label each of the...Ch. 5.2 - [Type here]
True or False
Label each of the...Ch. 5.2 - Label each of the following as either true or...Ch. 5.2 - Confirm the statements made in Example 3 by...Ch. 5.2 - Consider the set ={[0],[2],[4],[6],[8]}10, with...Ch. 5.2 - Consider the set...Ch. 5.2 - [Type here]
Examples 5 and 6 of Section 5.1 showed...Ch. 5.2 - Examples 5 and 6 of Section 5.1 showed that P(U)...Ch. 5.2 - [Type here]
Examples 5 and 6 of Section 5.1 showed...Ch. 5.2 - [Type here]
7. Let be the set of all ordered pairs...Ch. 5.2 - Let S be the set of all 2X2 matrices of the form...Ch. 5.2 - Work exercise 8 using be the set of all matrices...Ch. 5.2 - Work exercise 8 using S be the set of all matrices...Ch. 5.2 - Let R be the set of all matrices of the form...Ch. 5.2 - Prob. 12ECh. 5.2 - 13. Work Exercise 12 using , the Gaussian integers...Ch. 5.2 - 14. Letbe a commutative ring with unity in which...Ch. 5.2 - [Type here]
15. Give an example of an infinite...Ch. 5.2 - Prove that if a subring R of an integral domain D...Ch. 5.2 - If e is the unity in an integral domain D, prove...Ch. 5.2 - [Type here]
18. Prove that only idempotent...Ch. 5.2 - a. Give an example where a and b are not zero...Ch. 5.2 - 20. Find the multiplicative inverse of the given...Ch. 5.2 - [Type here]
21. Prove that ifand are integral...Ch. 5.2 - Prove that if R and S are fields, then the direct...Ch. 5.2 - [Type here]
23. Let be a Boolean ring with unity....Ch. 5.2 - If a0 in a field F, prove that for every bF the...Ch. 5.2 - Suppose S is a subset of an field F that contains...Ch. 5.3 - True or False Label each of the following...Ch. 5.3 - Prob. 2TFECh. 5.3 - Prob. 3TFECh. 5.3 - Prob. 4TFECh. 5.3 - Prob. 5TFECh. 5.3 - Prove that the multiplication defined 5.24 is a...Ch. 5.3 - Prove that addition is associative in Q.Ch. 5.3 - Prob. 3ECh. 5.3 - Prob. 4ECh. 5.3 - Prob. 5ECh. 5.3 - Prob. 6ECh. 5.3 - 7. Prove that on a given set of rings, the...Ch. 5.3 - Prob. 8ECh. 5.3 - Prob. 9ECh. 5.3 - Since this section presents a method for...Ch. 5.3 - Prob. 11ECh. 5.3 - Prob. 12ECh. 5.3 - Prob. 13ECh. 5.3 - 14. Let be the set of all real numbers of the...Ch. 5.3 - Prob. 15ECh. 5.3 - Prove that any field that contains an intergral...Ch. 5.3 - Prob. 17ECh. 5.3 - 18. Let be the smallest subring of the field of...Ch. 5.4 - True or False Label each of the following...Ch. 5.4 - True or False Label each of the following...Ch. 5.4 - True or False
Label each of the following...Ch. 5.4 - True or False Label each of the following...Ch. 5.4 - Prob. 5TFECh. 5.4 - Complete the proof of Theorem 5.30 by providing...Ch. 5.4 - 2. Prove the following statements for arbitrary...Ch. 5.4 - Prove the following statements for arbitrary...Ch. 5.4 - Suppose a and b have multiplicative inverses in an...Ch. 5.4 - 5. Prove that the equation has no solution in an...Ch. 5.4 - 6. Prove that if is any element of an ordered...Ch. 5.4 - For an element x of an ordered integral domain D,...Ch. 5.4 - If x and y are elements of an ordered integral...Ch. 5.4 - 9. If denotes the unity element in an integral...Ch. 5.4 - 10. An ordered field is an ordered integral domain...Ch. 5.4 - 11. (See Exercise 10.) According to Definition...Ch. 5.4 - 12. (See Exercise 10 and 11.) If each is...Ch. 5.4 - 13. Prove that if and are rational numbers such...Ch. 5.4 - 14. a. If is an ordered integral domain, prove...Ch. 5.4 - 15. (See Exercise .) If and with and in ,...Ch. 5.4 - If x and y are positive rational numbers, prove...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.Similar questions
- 2. A microwave manufacturing firm has determined that their profit function is P(x)=-0.0014x+0.3x²+6x-355 , where is the number of microwaves sold annually. a. Graph the profit function using a calculator. b. Determine a reasonable viewing window for the function. c. Approximate all of the zeros of the function using the CALC menu of your calculator. d. What must be the range of microwaves sold in order for the firm to profit?arrow_forwardA clothing manufacturer's profitability can be modeled by p (x)=-x4 + 40x² - 144, where .x is the number of items sold in thousands and p (x) is the company's profit in thousands of dollars. a. Sketch the function on your calculator and describe the end behavior. b. Determine the zeros of the function. c. Between what two values should the company sell in order to be profitable? d. Explain why only two of the zeros are considered in part c.arrow_forwardCCSS REASONING The number of subscribers using pagers in the United States can be modeled by f(x) = 0.015x4 -0.44x³ +3.46x² - 2.7x+9.68 where x is the number of years after 1990 and f(x) is the number of subscribers in millions. a. Graph the function. b. Describe the end behavior of the graph. c. What does the end behavior suggest about the number of pager subscribers? d. Will this trend continue indefinitely? Explain your reasoning.arrow_forward
- Can you help me solve this?arrow_forwardName Assume there is the following simplified grade book: Homework Labs | Final Exam | Project Avery 95 98 90 100 Blake 90 96 Carlos 83 79 Dax 55 30 228 92 95 79 90 65 60 Assume that the weights used to compute the final grades are homework 0.3, labs 0.2, the final 0.35, and the project 0.15. | Write an explicit formula to compute Avery's final grade using a single inner product. Write an explicit formula to compute everyone's final grade simultane- ously using a single matrix-vector product.arrow_forward1. Explicitly compute by hand (with work shown) the following Frobenius inner products 00 4.56 3.12 (a) ((º º º). (156 (b) 10.9 -1 0 2)), Fro 5')) Froarrow_forward
- 3. Let 4 0 0 00 0 0 1.2 0 00 0 0 0 -10.1 0 0 0 D = 0 0 0 00 0 0 0 0 05 0 0 0 0 0 0 2.8 Either explicitly compute D-¹ or explain why it doesn't exist.arrow_forward4. [9 points] Assume that B, C, E are all 3 x 3 matrices such that BC == -64 -1 0 3 4 4 4 -2 2 CB=-1-2 4 BE -2 1 3 EC = 1 3 2 -7, 1 6 -6 2-5 -7 -2 Explicitly compute the following by hand. (I.e., write out the entries of the 3 × 3 matrix.) (a) [3 points] B(E+C) (b) [3 points] (E+B)C (c) [3 points] ETBTarrow_forward6. Consider the matrices G = 0 (3) -3\ -3 2 and H = -1 2 0 5 0 5 5 noting that H(:, 3) = 2H(:,1) + H(:, 2). Is G invertible? Explain your answer. Is H invertible? Explain your answer. Use co-factor expansion to find the determinant of H. (Hint: expand the 2nd or 3rd row)arrow_forward
- For the matrix A = = ( 6 }) . explicitly compute by hand (with work shown) the following. I2A, where I2 is the 2 × 2 identity matrix. A-1 solving the following linear systems by using A-¹: c+y= 1 y = 1 (d) (e) (f) A² find the diagonal entries of Aarrow_forwardIf 3x−y=12, what is the value of 8x / 2y A) 212B) 44C) 82D) The value cannot be determined from the information given.arrow_forwardC=59(F−32) The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true? A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of 59 degree Celsius. A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit. A temperature increase of 59 degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius. A) I onlyB) II onlyC) III onlyD) I and II onlyarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage
Elements Of Modern AlgebraAlgebraISBN:9781285463230Author:Gilbert, Linda, JimmiePublisher:Cengage Learning,
Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Elements Of Modern Algebra
Algebra
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Cengage Learning,
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
What is a Relation? | Don't Memorise; Author: Don't Memorise;https://www.youtube.com/watch?v=hV1_wvsdJCE;License: Standard YouTube License, CC-BY
RELATIONS-DOMAIN, RANGE AND CO-DOMAIN (RELATIONS AND FUNCTIONS CBSE/ ISC MATHS); Author: Neha Agrawal Mathematically Inclined;https://www.youtube.com/watch?v=u4IQh46VoU4;License: Standard YouTube License, CC-BY