Student Solutions Manual for Gallian's Contemporary Abstract Algebra, 9th
9th Edition
ISBN: 9781305657977
Author: Gallian, Joseph
Publisher: Brooks Cole
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Chapter 6, Problem 25E
To determine
To Find: an example of a cyclic group of smallest order which has subgroups isomorphic to
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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
Chapter 6 Solutions
Student Solutions Manual for Gallian's Contemporary Abstract Algebra, 9th
Ch. 6 - Prob. 1ECh. 6 - Find Aut(Z).Ch. 6 - Let R+ be the group of positive real numbers under...Ch. 6 - Show that U(8) is not isomorphic to U(10).Ch. 6 - Show that U(8) is isomorphic to U(12).Ch. 6 - Prove that isomorphism is an equivalence relation....Ch. 6 - Prove that S4 is not isomorphic to D12 .Ch. 6 - Show that the mapping alog10a is an isomorphism...Ch. 6 - In the notation of Theorem 6.1, prove that Te is...Ch. 6 - Given that is a isomorphism from a group G under...
Ch. 6 - Let G be a group under multiplication, G be a...Ch. 6 - Let G be a group. Prove that the mapping (g)=g1...Ch. 6 - Prob. 13ECh. 6 - Find two groups G and H such that GH , but...Ch. 6 - Prob. 15ECh. 6 - Find Aut(Z6) .Ch. 6 - If G is a group, prove that Aut(G) and Inn(G) are...Ch. 6 - If a group G is isomorphic to H, prove that Aut(G)...Ch. 6 - Suppose belongs to Aut(Zn) and a is relatively...Ch. 6 - Let H be the subgroup of all rotations in Dn and...Ch. 6 - Let H=S5(1)=1andK=S5(2)=2 . Provethat H is...Ch. 6 - Show that Z has infinitely many subgroups...Ch. 6 - Prob. 23ECh. 6 - Let be an automorphism of a group G. Prove that...Ch. 6 - Prob. 25ECh. 6 - Suppose that :Z20Z20 is an automorphismand (5)=5 ....Ch. 6 - Identify a group G that has subgroups isomorphic...Ch. 6 - Prove that the mapping from U(16) to itself given...Ch. 6 - Let rU(n) . Prove that the mapping a: ZnZn defined...Ch. 6 - The group {[1a01]|aZ} is isomorphic to what...Ch. 6 - If and are isomorphisms from the cyclic group a...Ch. 6 - Prob. 32ECh. 6 - Prove property 1 of Theorem 6.3. Theorem 6.3...Ch. 6 - Prove property 4 of Theorem 6.3. Theorem 6.3...Ch. 6 - Referring to Theorem 6.1, prove that Tg is indeed...Ch. 6 - Prove or disprove that U(20) and U(24) are...Ch. 6 - Show that the mapping (a+bi)=a=bi is an...Ch. 6 - Let G={a+b2a,barerational} and...Ch. 6 - Prob. 39ECh. 6 - Explain why S8 contains subgroups isomorphic to...Ch. 6 - Let C be the complex numbers and M={[abba]|a,bR} ....Ch. 6 - Prob. 42ECh. 6 - Prob. 43ECh. 6 - Suppose that G is a finite Abelian group and G has...Ch. 6 - Prob. 45ECh. 6 - Prob. 46ECh. 6 - Suppose that g and h induce the same inner...Ch. 6 - Prob. 48ECh. 6 - Prob. 49ECh. 6 - Prob. 50ECh. 6 - Prob. 51ECh. 6 - Let G be a group. Complete the following...Ch. 6 - Suppose that G is an Abelian group and is an...Ch. 6 - Let be an automorphismof D8 . What are the...Ch. 6 - Let be an automorphism of C*, the group of...Ch. 6 - Let G=0,2,4,6,...andH=0,3,6,9,... .Prove that G...Ch. 6 - Give three examples of groups of order 120, no two...Ch. 6 - Let be an automorphism of D4 such that (H)=D ....Ch. 6 - Prob. 59ECh. 6 - Prob. 60ECh. 6 - Write the permutation corresponding to R90 in the...Ch. 6 - Show that every automorphism of the rational...Ch. 6 - Prove that Q+ , the group of positive rational...Ch. 6 - Prob. 64ECh. 6 - Prob. 65ECh. 6 - Prove that Q*, the group of nonzero rational...Ch. 6 - Give a group theoretic proof that Q under addition...
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- 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 $6.00arrow_forward2. 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_forward
- CCSS 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_forwardCan 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_forward
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