Mathematics All Around (6th Edition)
6th Edition
ISBN: 9780134434681
Author: Tom Pirnot
Publisher: PEARSON
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Textbook Question
Chapter 3.6, Problem 27E
In exercises
Your younger sister is having a difficult time deciding which of three colleges to attend: Little small college (LSC), Good Old State (GOS), and Mom’s Favorite University (MFU). In the first table, we list features of each school that are important to your sister and rank these qualities in the second table, we list the degree to which each school satisfies these characteristics. What should she do?
The reason that this is Mom’s favorite university is that Mom would like to see your sister go to a school to home.
Characteristic | Importance |
Size (not too large) |
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Cost |
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Academics |
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Social life |
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Close to home |
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LSC | GOS | MFU | |
Size (not too large) |
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Cost |
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Academics |
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Social life |
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Close to home |
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Exercise 1
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Chapter 3 Solutions
Mathematics All Around (6th Edition)
Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...Ch. 3.1 - Sharpening Your Skills In Exercise 110, determine...
Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - In Exercise 1120, identify each statement as...Ch. 3.1 - Consider the following statements: g: Global...Ch. 3.1 - Consider the following statements: g: Global...Ch. 3.1 - Consider the following statements: g: Global...Ch. 3.1 - Consider the following statements: g: Global...Ch. 3.1 - Consider the following statements: t: The radial...Ch. 3.1 - Prob. 26ECh. 3.1 - Consider the following statements: t: The radial...Ch. 3.1 - Consider the following statements: t: The radial...Ch. 3.1 - In Exercises 2934, negate each quantified...Ch. 3.1 - In Exercises 2934, negate each quantified...Ch. 3.1 - In Exercises 2934, negate each quantified...Ch. 3.1 - In Exercises 2934, negate each quantified...Ch. 3.1 - In Exercises 2934, negate each quantified...Ch. 3.1 - In Exercises 2934, negate each quantified...Ch. 3.1 - Applying What Youve Learned Use the following...Ch. 3.1 - Applying What Youve Learned Use the following...Ch. 3.1 - Applying What Youve Learned Use the following...Ch. 3.1 - Applying What Youve Learned Use the following...Ch. 3.1 - Applying What Youve Learned Use the following...Ch. 3.1 - Applying What Youve Learned Use the following...Ch. 3.1 - Consider the happy and sad faces below. Determine...Ch. 3.1 - Consider the happy and sad faces below. Determine...Ch. 3.1 - Consider the happy and sad faces below. Determine...Ch. 3.1 - Consider the happy and sad faces below. Determine...Ch. 3.1 - In Exercises 4548, examine each statement to...Ch. 3.1 - In Exercises 4548, examine each statement to...Ch. 3.1 - In Exercises 4548, examine each statement to...Ch. 3.1 - In Exercises 4548, examine each statement to...Ch. 3.1 - Because the English language is so complex, it is...Ch. 3.1 - Because the English language is so complex, it is...Ch. 3.1 - Because the English language is so complex, it is...Ch. 3.1 - Prob. 52ECh. 3.1 - Prob. 53ECh. 3.1 - Prob. 54ECh. 3.1 - Prob. 55ECh. 3.1 - In 1937, Claude Shannon showed that computer...Ch. 3.1 - Prob. 57ECh. 3.1 - In 1937, Claude Shannon showed that computer...Ch. 3.1 - In Exercises 5962, determine if the following...Ch. 3.1 - In Exercises 5962, determine if the following...Ch. 3.1 - Prob. 61ECh. 3.1 - Prob. 62ECh. 3.1 - Prob. 63ECh. 3.1 - Prob. 64ECh. 3.1 - Prob. 65ECh. 3.1 - Prob. 66ECh. 3.1 - 6772. In symbolic logic, the form of statements is...Ch. 3.1 - Prob. 68ECh. 3.1 - Prob. 69ECh. 3.1 - Prob. 70ECh. 3.1 - Prob. 71ECh. 3.1 - 6772. In symbolic logic, the form of statements is...Ch. 3.1 - Think of real-life situation that you might want...Ch. 3.1 - Provide arguments for or against the view that...Ch. 3.2 - In Exercise 1-10, assume that p is true, q is...Ch. 3.2 - In Exercise 1-10, assume that p is true, q is...Ch. 3.2 - In Exercise 1-10, assume that p is true, q is...Ch. 3.2 - In Exercise 1-10, assume that p is true, q is...Ch. 3.2 - In Exercise 1-10, assume that p is true, q is...Ch. 3.2 - In Exercise 1-10, assume that p is true, q is...Ch. 3.2 - In Exercise 1-10, assume that p is true, q is...Ch. 3.2 - Prob. 8ECh. 3.2 - In Exercise 1-10, assume that p is true, q is...Ch. 3.2 - In Exercise 1-10, assume that p is true, q is...Ch. 3.2 - State whether the numbers given in Exercise 11-14...Ch. 3.2 - State whether the numbers given in Exercise 11-14...Ch. 3.2 - State whether the numbers given in Exercise 11-14...Ch. 3.2 - State whether the numbers given in Exercise 11-14...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 15-24, construct a truth table for...Ch. 3.2 - In Exercise 25-28, determine whether we are using...Ch. 3.2 - In Exercise 25-28, determine whether we are using...Ch. 3.2 - In Exercise 25-28, determine whether we are using...Ch. 3.2 - In Exercise 25-28, determine whether we are using...Ch. 3.2 - In Exercise 29-34, use DeMorgans laws to rewrite...Ch. 3.2 - In Exercise 29-34, use DeMorgans laws to rewrite...Ch. 3.2 - In Exercise 29-34, use DeMorgans laws to rewrite...Ch. 3.2 - In Exercise 29-34, use DeMorgans laws to rewrite...Ch. 3.2 - In Exercise 29-34, use DeMorgans laws to rewrite...Ch. 3.2 - In Exercise 29-34, use DeMorgans laws to rewrite...Ch. 3.2 - In Exercise 35-42, determine whether the pair of...Ch. 3.2 - In Exercise 35-42, determine whether the pair of...Ch. 3.2 - In Exercise 35-42, determine whether the pair of...Ch. 3.2 - In Exercise 35-42, determine whether the pair of...Ch. 3.2 - In Exercise 35-42, determine whether the pair of...Ch. 3.2 - In Exercise 35-42, determine whether the pair of...Ch. 3.2 - In Exercise 35-42, determine whether the pair of...Ch. 3.2 - In Exercise 35-42, determine whether the pair of...Ch. 3.2 - Exercise 43-48, deal with three-valued logic....Ch. 3.2 - Exercise 43-48, deal with three-valued logic....Ch. 3.2 - Exercise 43-48, deal with three-valued logic....Ch. 3.2 - Exercise 43-48, deal with three-valued logic....Ch. 3.2 - Exercise 43-48, deal with three-valued logic....Ch. 3.2 - Exercise 43-48, deal with three-valued logic....Ch. 3.2 - Applying What Youve Learned Use the following...Ch. 3.2 - Applying What Youve Learned Use the following...Ch. 3.2 - Prob. 51ECh. 3.2 - Prob. 52ECh. 3.2 - Prob. 53ECh. 3.2 - Prob. 54ECh. 3.2 - Prob. 55ECh. 3.2 - Prob. 56ECh. 3.2 - Prob. 57ECh. 3.2 - Prob. 58ECh. 3.2 - Prob. 59ECh. 3.2 - Prob. 60ECh. 3.2 - Prob. 61ECh. 3.2 - Prob. 62ECh. 3.2 - Use this graph based on data from the National Pet...Ch. 3.2 - Prob. 64ECh. 3.2 - In Section 3.1 page 94, we showed how to represent...Ch. 3.2 - Prob. 66ECh. 3.2 - Prob. 67ECh. 3.2 - Prob. 68ECh. 3.2 - Prob. 69ECh. 3.2 - What advantage do you see in using truth tables to...Ch. 3.2 - Prob. 71ECh. 3.2 - The and connective is necessary in the sense that...Ch. 3.2 - The stroke connective has the following truth...Ch. 3.2 - The stroke connective has the following truth...Ch. 3.2 - The stroke connective has the following truth...Ch. 3.2 - The stroke connective has the following truth...Ch. 3.3 - Prob. 1ECh. 3.3 - Prob. 2ECh. 3.3 - Prob. 3ECh. 3.3 - Prob. 4ECh. 3.3 - Prob. 5ECh. 3.3 - Prob. 6ECh. 3.3 - Prob. 7ECh. 3.3 - Prob. 8ECh. 3.3 - Prob. 9ECh. 3.3 - Prob. 10ECh. 3.3 - Prob. 11ECh. 3.3 - Prob. 12ECh. 3.3 - Prob. 13ECh. 3.3 - Prob. 14ECh. 3.3 - Prob. 15ECh. 3.3 - Prob. 16ECh. 3.3 - Prob. 17ECh. 3.3 - Prob. 18ECh. 3.3 - Prob. 19ECh. 3.3 - Prob. 20ECh. 3.3 - Prob. 21ECh. 3.3 - Prob. 22ECh. 3.3 - Prob. 23ECh. 3.3 - Prob. 24ECh. 3.3 - Prob. 25ECh. 3.3 - Prob. 26ECh. 3.3 - Prob. 27ECh. 3.3 - Prob. 28ECh. 3.3 - Assume that you begin with a statement of the form...Ch. 3.3 - Prob. 30ECh. 3.3 - Assume that you begin with a statement of the form...Ch. 3.3 - Assume that you begin with a statement of the form...Ch. 3.3 - In Exercises 3336, write the indicated statement...Ch. 3.3 - In Exercises 3336, write the indicated statement...Ch. 3.3 - Prob. 35ECh. 3.3 - Prob. 36ECh. 3.3 - In Exercises 3740, determine which pairs of...Ch. 3.3 - In Exercises 3740, determine which pairs of...Ch. 3.3 - Prob. 39ECh. 3.3 - Prob. 40ECh. 3.3 - In Exercises 4148, rewrite each statement using...Ch. 3.3 - Prob. 42ECh. 3.3 - In Exercises 4148, rewrite each statement using...Ch. 3.3 - Prob. 44ECh. 3.3 - Prob. 45ECh. 3.3 - Prob. 46ECh. 3.3 - In Exercises 4148, rewrite each statement using...Ch. 3.3 - Prob. 48ECh. 3.3 - Find the truth value for each statement in...Ch. 3.3 - Find the truth value for each statement in...Ch. 3.3 - Find the truth value for each statement in...Ch. 3.3 - Find the truth value for each statement in...Ch. 3.3 - Prob. 53ECh. 3.3 - Prob. 54ECh. 3.3 - Prob. 55ECh. 3.3 - Prob. 56ECh. 3.3 - According to an Accountemps survey appearing in...Ch. 3.3 - According to an Accountemps survey appearing in...Ch. 3.3 - According to an Accountemps survey appearing in...Ch. 3.3 - According to an Accountemps survey appearing in...Ch. 3.3 - Perhaps you have heard the term helicopter...Ch. 3.3 - Perhaps you have heard the term helicopter...Ch. 3.3 - Perhaps you have heard the term helicopter...Ch. 3.3 - Perhaps you have heard the term helicopter...Ch. 3.3 - In Exercises 6568, write the converse, inverse, or...Ch. 3.3 - In Exercises 6568, write the converse, inverse, or...Ch. 3.3 - In Exercises 6568, write the converse, inverse, or...Ch. 3.3 - In Exercises 6568, write the converse, inverse, or...Ch. 3.3 - Prob. 69ECh. 3.3 - Prob. 70ECh. 3.3 - Communicating Mathematics Give an example of a...Ch. 3.3 - Communicating Mathematics Is it possible to have a...Ch. 3.3 - Communicating Mathematics Explain why it is...Ch. 3.3 - Communicating Mathematics Why is it reasonable to...Ch. 3.3 - In Exercises 75 and 76, assume that a credit card...Ch. 3.3 - In Exercises 75 and 76, assume that a credit card...Ch. 3.3 - Challenge Yourself In Exercises 79 and 80, use...Ch. 3.3 - Challenge Yourself In Exercises 79 and 80, use...Ch. 3.3 - Prob. 81ECh. 3.3 - Prob. 82ECh. 3.3 - Prob. 83ECh. 3.3 - Prob. 84ECh. 3.3 - Exercises 85 and 86 are based on the exercise sets...Ch. 3.3 - Exercises 85 and 86 are based on the exercise sets...Ch. 3.4 - Prob. 1ECh. 3.4 - Prob. 2ECh. 3.4 - Prob. 3ECh. 3.4 - Prob. 4ECh. 3.4 - Prob. 5ECh. 3.4 - Prob. 6ECh. 3.4 - Prob. 7ECh. 3.4 - Prob. 8ECh. 3.4 - Prob. 9ECh. 3.4 - Prob. 10ECh. 3.4 - Prob. 11ECh. 3.4 - Prob. 12ECh. 3.4 - Prob. 13ECh. 3.4 - Prob. 14ECh. 3.4 - Prob. 15ECh. 3.4 - Prob. 16ECh. 3.4 - Prob. 17ECh. 3.4 - Prob. 18ECh. 3.4 - Prob. 19ECh. 3.4 - Prob. 20ECh. 3.4 - Prob. 21ECh. 3.4 - Prob. 22ECh. 3.4 - Prob. 23ECh. 3.4 - Prob. 24ECh. 3.4 - Prob. 25ECh. 3.4 - Prob. 26ECh. 3.4 - Prob. 27ECh. 3.4 - Prob. 28ECh. 3.4 - Prob. 29ECh. 3.4 - Prob. 30ECh. 3.4 - Prob. 31ECh. 3.4 - Prob. 32ECh. 3.4 - Prob. 33ECh. 3.4 - Prob. 34ECh. 3.4 - Prob. 35ECh. 3.4 - Prob. 36ECh. 3.4 - Prob. 37ECh. 3.4 - Prob. 38ECh. 3.4 - Prob. 39ECh. 3.4 - Prob. 40ECh. 3.4 - Prob. 41ECh. 3.4 - Prob. 42ECh. 3.4 - We have emphasized that the form of a logical...Ch. 3.4 - We have emphasized that the form of a logical...Ch. 3.4 - We have emphasized that the form of a logical...Ch. 3.4 - We have emphasized that the form of a logical...Ch. 3.4 - Challenge Yourself Exercises 49-52 are puzzles...Ch. 3.4 - Challenge Yourself Exercises 49-52 are puzzles...Ch. 3.4 - Challenge Yourself Exercises 49-52 are puzzles...Ch. 3.4 - In a complicated argument with many variables, it...Ch. 3.4 - In a complicated argument with many variables, it...Ch. 3.4 - In addition to the argument forms that you studies...Ch. 3.4 - In addition to the argument forms that you studies...Ch. 3.4 - In addition to the argument forms that you studies...Ch. 3.4 - In addition to the argument forms that you studies...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 116, determine whether each syllogism...Ch. 3.5 - In Exercise 1724, complete each syllogism so that...Ch. 3.5 - Prob. 18ECh. 3.5 - In Exercise 1724, complete each syllogism so that...Ch. 3.5 - Prob. 20ECh. 3.5 - In Exercise 1724, complete each syllogism so that...Ch. 3.5 - Prob. 22ECh. 3.5 - In Exercise 1724, complete each syllogism so that...Ch. 3.5 - Prob. 24ECh. 3.5 - In Exercises 25 28, write two syllogisms that can...Ch. 3.5 - In Exercises 25 28, write two syllogisms that can...Ch. 3.5 - In Exercises 25 28, write two syllogisms that can...Ch. 3.5 - In Exercises 25 28, write two syllogisms that can...Ch. 3.5 - Give an example of a valid syllogism that has a...Ch. 3.5 - Give an example of a invalid syllogism that has a...Ch. 3.5 - Draw an Euler diagram for the statements All As...Ch. 3.5 - Draw an Euler diagram for the statements Some As...Ch. 3.5 - Draw an Euler diagram for the statements No As are...Ch. 3.5 - In each of your drawings for Exercises 31 33,...Ch. 3.6 - In Exercises 1-8, assign a truth value between 0...Ch. 3.6 - In Exercises 1-8, assign a truth value between 0...Ch. 3.6 - In Exercises 1-8, assign a truth value between 0...Ch. 3.6 - In Exercises 1-8, assign a truth value between 0...Ch. 3.6 - In Exercises 1-8, assign a truth value between 0...Ch. 3.6 - In Exercises 1-8, assign a truth value between 0...Ch. 3.6 - In Exercises 1-8, assign a truth value between 0...Ch. 3.6 - In Exercises 1-8, assign a truth value between 0...Ch. 3.6 - In a Exercises 9-12, calculate the truth value of...Ch. 3.6 - Prob. 10ECh. 3.6 - Prob. 11ECh. 3.6 - In a Exercises 9-12, calculate the truth value of...Ch. 3.6 - In Exercises 13-16, consider the following fuzzy...Ch. 3.6 - In Exercises 13-16, consider the following fuzzy...Ch. 3.6 - In Exercise 13-16, consider the following fuzzy...Ch. 3.6 - In Exercise 13-16, consider the following fuzzy...Ch. 3.6 - In Exercises 17-24, assume that p has a truth...Ch. 3.6 - In Exercises 17-24, assume that p has a truth...Ch. 3.6 - Prob. 19ECh. 3.6 - In Exercises 17-24, assume that p has a truth...Ch. 3.6 - Prob. 21ECh. 3.6 - Prob. 22ECh. 3.6 - In Exercises 17-24, assume that p has a truth...Ch. 3.6 - Prob. 24ECh. 3.6 - In exercises 25-28, use the method described in...Ch. 3.6 - Prob. 26ECh. 3.6 - In exercises 25-28, use the method described in...Ch. 3.6 - In exercises 25-28, use the method described in...Ch. 3.6 - How are the rules for computing the truth tables...Ch. 3.6 - Discuss some situations in which using fuzzy logic...Ch. 3.6 - Choose a situation you will face in which you must...Ch. 3.6 - Do you have any criticisms of the decision-making...Ch. 3.CR - Prob. 1CRCh. 3.CR - Let v represent the statement I will buy a new...Ch. 3.CR - Let f represent Antonio is fluent in Spanish and...Ch. 3.CR - Negate each quantified statement and then rewrite...Ch. 3.CR - Let p represent some true statement, q represent...Ch. 3.CR - How many rows will be in the table for each...Ch. 3.CR - Construct a truth table for each statement. a....Ch. 3.CR - Negate each statement and then rewrite the...Ch. 3.CR - Which pairs of statements are logically...Ch. 3.CR - Assume we are dealing with three- valued logic and...Ch. 3.CR - Assume that p represent a true statement, q a...Ch. 3.CR - Construct a truth table for each statement. a. pq...Ch. 3.CR - Prob. 13CRCh. 3.CR - Rewrite each statement using the words if then. a....Ch. 3.CR - Section 3.4 15. Identify the form of each...Ch. 3.CR - Determine whether the form represents a valid...Ch. 3.CR - Use a truth table to determine whether the...Ch. 3.CR - In Exercises 18 and 19, use Euler diagrams to...Ch. 3.CR - In Exercises 18 and 19, use Euler diagrams to...Ch. 3.CR - Assume that p and q are fuzzy statements having...Ch. 3.CT - Which of the following are statements? a. New York...Ch. 3.CT - Negate each quantified statement and then rewrite...Ch. 3.CT - Let p represent the statement I will pass my...Ch. 3.CT - Let t represent The Tigers will win the series and...Ch. 3.CT - Prob. 5CTCh. 3.CT - If p is false and q is true and r is false, what...Ch. 3.CT - Prob. 7CTCh. 3.CT - Construct a truth table for each statement. a....Ch. 3.CT - Prob. 9CTCh. 3.CT - Negate each statement and then rewrite the...Ch. 3.CT - Determine whether the following pairs of...Ch. 3.CT - Write in words the converse, inverse, and...Ch. 3.CT - If p is true, q is false, and r is true, what is...Ch. 3.CT - Assume we are dealing with three-valued logic and...Ch. 3.CT - Prob. 15CTCh. 3.CT - Determine whether the form represents a valid...Ch. 3.CT - Identify the form of each argument. If it aint...Ch. 3.CT - In fuzzy logic, we replaced the conditional pq by...Ch. 3.CT - Use a truth table to determine if the argument is...Ch. 3.CT - Use an Euler diagram to determine whether the...
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- 3. (a) Lety: [a, b] C be a contour. Let L(y) denote the length of y. Give a formula for L(y). (1 mark) (b) Let UCC be open. Let f: U→C be continuous. Let y: [a,b] → U be a contour. Suppose there exists a finite real number M such that |f(z)| < M for all z in the image of y. Prove that < ||, f(z)dz| ≤ ML(y). (3 marks) (c) State and prove Liouville's theorem. You may use Cauchy's integral formula without proof. (d) Let R0. Let w € C. Let (10 marks) U = { z Є C : | z − w| < R} . Let f UC be a holomorphic function such that 0 < |ƒ(w)| < |f(z)| for all z Є U. Show, using the local maximum modulus principle, that f is constant. (6 marks)arrow_forward3. (a) Let A be an algebra. Define the notion of an A-module M. When is a module M a simple module? (b) State and prove Schur's Lemma for simple modules. (c) Let AM(K) and M = K" the natural A-module. (i) Show that M is a simple K-module. (ii) Prove that if ƒ € Endд(M) then ƒ can be written as f(m) = am, where a is a matrix in the centre of M, (K). [Recall that the centre, Z(M,(K)) == {a Mn(K) | ab M,,(K)}.] = ba for all bЄ (iii) Explain briefly why this means End₁(M) K, assuming that Z(M,,(K))~ K as K-algebras. Is this consistent with Schur's lemma?arrow_forward(a) State, without proof, Cauchy's theorem, Cauchy's integral formula and Cauchy's integral formula for derivatives. Your answer should include all the conditions required for the results to hold. (8 marks) (b) Let U{z EC: |z| -1}. Let 12 be the triangular contour with vertices at 0, 2-2 and 2+2i, parametrized in the anticlockwise direction. Calculate dz. You must check the conditions of any results you use. (d) Let U C. Calculate Liz-1ym dz, (z - 1) 10 (5 marks) where 2 is the same as the previous part. You must check the conditions of any results you use. (4 marks)arrow_forward
- (a) Suppose a function f: C→C has an isolated singularity at wЄ C. State what it means for this singularity to be a pole of order k. (2 marks) (b) Let f have a pole of order k at wЄ C. Prove that the residue of f at w is given by 1 res (f, w): = Z dk (k-1)! >wdzk−1 lim - [(z — w)* f(z)] . (5 marks) (c) Using the previous part, find the singularity of the function 9(z) = COS(πZ) e² (z - 1)²' classify it and calculate its residue. (5 marks) (d) Let g(x)=sin(211). Find the residue of g at z = 1. (3 marks) (e) Classify the singularity of cot(z) h(z) = Z at the origin. (5 marks)arrow_forward1. Let z = x+iy with x, y Є R. Let f(z) = u(x, y) + iv(x, y) where u(x, y), v(x, y): R² → R. (a) Suppose that f is complex differentiable. State the Cauchy-Riemann equations satisfied by the functions u(x, y) and v(x,y). (b) State what it means for the function (2 mark) u(x, y): R² → R to be a harmonic function. (3 marks) (c) Show that the function u(x, y) = 3x²y - y³ +2 is harmonic. (d) Find a harmonic conjugate of u(x, y). (6 marks) (9 marks)arrow_forwardPlease could you provide a step by step solutions to this question and explain every step.arrow_forward
- Could you please help me with question 2bii. If possible could you explain how you found the bounds of the integral by using a graph of the region of integration. Thanksarrow_forwardLet A be a vector space with basis 1, a, b. Which (if any) of the following rules turn A into an algebra? (You may assume that 1 is a unit.) (i) a² = a, b² = ab = ba = 0. (ii) a²=b, b² = ab = ba = 0. (iii) a²=b, b² = b, ab = ba = 0.arrow_forwardNo chatgpt pls will upvotearrow_forward
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