June 2011 PURDUE UNIVERSITY Study Guide for the Credit Exam in (MA 262) Linear Algebra and Differential Equations
|
|
- Gwenda Wells
- 5 years ago
- Views:
Transcription
1 June 20 PURDUE UNIVERSITY Study Guide for the Credit Exam in (MA 262) Linear Algebra and Differential Equations The topics covered in this exam can be found in An introduction to differential equations and linear algebra by Stephen Goode, Chapters. See also for recent course information and materials. The exam consists of 25 multiple choice questions with two hour time limit. No books, notes, calculators or any other electronic devices are allowed. IMPORTANT. Read this material thoroughly if you contemplate trying for advanced placement (and extra credit which counts toward graduation). 2. Study all the material listed in the outline.. Work the practice problems below. The correct answers are at the end. Topics covered in the exam Linear Algebra:. Complex numbers, polar representation, roots of complex numbers. 2. Vector spaces: subspace, basis, spanning set, linear combination, linear independence.. Matrix operations: addition, multiplication, inverse, determinants. 4. Row reduction of matrices: row-echelon normal form, rank. 5. Systems of linear equations: solve using matrix methods, augmented matrices, Cramer s rule, solution space. 6. Eigenvalues and eigenvectors. Differential Equations:. First-order differential equations with and without initial conditions. Types include - separable variables, exact, linear. 2. Applications of first-order E. s to mixture problems, growth and decay problems, falling bodies, electrical circuits, orthogonal trajectories.. Second and higher-order linear E. s with constant coefficients: Undetermined coefficients, initial value problems. Variation of Parameters. 4. Applications of second-order E. s to Newton s 2nd law, spring mass systems, electrical circuits, etc. Systems of Differential Equations:. Matrix Formulation. 2. Solutions to linear systems with constant coefficient using eigenvalues and eigenvectors.. Variation of parameters for systems.
2 MA 262 PRACTICE PROBLEMS page /8 Circle the letter corresponding to your choice of correct answer.. Find the determinant of A if A = If A is a 4matrixandP = solutions of A a solution? x y z w = p p 2 p p 4 and Q = q q 2 q q 4 are 2 which of the following is also. Which of the following complex numbers z satisfies z 2 = ri where r is some real number? E. P + Q P Q 2P Q Q 2P E. all of the above i + i +i +i E. none of these 4. Which of the following are real vector spaces (in each case multiplication by a real number and addition have the usual meanings)? (i) The set of all real valued functions f such that f(x +)=2f(x) for all x. (ii) The set of all real polynomials p such that p() = p(0) +. (iii) The set of all 4 4 matrices whose first and last rows are equal. (i) and (iii) none (i) and (ii) only (iii) E. (ii) and (iii)
3 5. The smallest subspace of R containing the vectors (, 2, ) and (5,, ) is the set of all (x, y, z) satisfying which of the following? x, y, z 0 x 2 + y 2 + z 2 =0 x + y z =0 x +5y +7z =0 E. x 4y +7z =0 6. Which of the following sets of vectors is linearly dependent? (i) (, 0, ), (,, 0), (0,, ) (ii) (, 0, ), (,, 0), (0,, ) (iii) (, 0, ), (0,, 0), (0, 0, 0) none (ii) only (i) and (ii) (i) and (iii) 7. The characteristic values of A = if k are real k + E. (ii) and (iii) k 2 > k 2 k 2 = k 2 E. k 2 < 8. The system of equations nonzero solution x y = 2 z a b c has a for all nonzero a, b, c if a = b + c if 2c = a + b if b a c E. if c 2a b
4 /2 / If the 2 2 matrices B = and A = x y 0 satisfy B 2 = A, then the bottom row of B is equal to (, 0) ( 2, ) 2 E. ( ) 2, 2 ( ) 2, 2 ( 2, ) 0. If A = then which of the following is not an entry 4 2 of A? all are entries E. none are entries. The matrix A = has as a characteristic value. What is the dimension of the vector space spanned by the characteristic vectors corresponding to? 2 0 E. cannot be determined
5 2. If A and B are 4 4 matrices and deta =4,detB =6, then det(a B T )= E. Undefined. If y + x y = ex ex and y() = 0, then y = xe x (x )e x x 2 (ex ) x (ex ) E. (2x 2)e x 4. The solution of (cos 2 x)y = y 2 satisfying y(π/4) = is y =2 tan x y =anx y = 2 cot x y = +sinx +cosx E. y = cos x 2cosx sin x
6 5. The general solution of is dy dx = 2xy +x2 y 2 x 2 y + x2 y + x = c y x2 y x = c 2xy + y 2 +x 2 = c log(x 2 + y 2 )=c E. none of the above 6. A tank initially contains 50 gal of water. Alcohol enters at the rate of 2 gal/min and the mixture leaves the tank at the same rate. The time t 0 when there is 25 gal of alcohol in the tank satisfies 25 = e t 0/2 = t 0 /50 t 0 =25ln2 25 = et 0/25 E. t 0 =25 7. The general solution of y (4) +4y = 0 is e x (c + c 2 x)+e x (c cos x + c 4 sin x) e x (c cos x+c 2 sin x)+e x (c cos x+c 4 sin x) (c + c 2 x)e x +(c + c 4 x)e x e x (c + c 2 x + c x 2 + c 4 x ) E. none of the above 8. For a particular solution of y +y +2y = xe x one should try a solution of the form Ae 2x + Be x Ae x + Bxe x (A + Bx)e x (Ax + Bx 2 )e x E. Ax 2 e x
7 9. A body attached to the lower end of a vertical spring has acceleration d2 x dt 2 = 6x ft/sec2,wherex = x(t) isthe distance of the body from the equlibrium position at time t. If the body passes through the equilibrium position at t = 0 with v = 2 ft/sec, then x = cos 4t cos 4t +sin4t sin 4t 20. The substitution t = e x transforms y +(e x )y + e 2x y = e x into e 4t d 2 y dt 2 + dy dt + y = t E. cos 4t sin 4t t 2 d2 y +(t )dy dt2 dt + t2 y = t t 2 d2 y dt 2 + tdy dt + t2 y = t d 2 y +(t )dy dt2 dt + t2 y = t E. none of the above 2. The smallest order of a linear homogeneous differential equation with constant coefficients which has y = xe 2x cos x as a solution is E. more than 6 22.A2 2 matrix A has as a characteristic value with multiplicity 2. Then two linearly independent solutions of x = Ax are of the form k e x, (k 2 + k )e x k e x, (k 2 + tk )e x k e x, k 2 te 2x k e x, k 2 e x
8 2. If a fundamental matrix for x = Ax is e 0 U(t) = 0 e t, then a particular solution u p (t) e of x = Ax +, such that u p (0) = 0 is e t 24. A 2 2 matrix A has as a characteristic value with 0 corresponding characteristic vector ]; and a characteristic value 2 with corresponding characteristic vector. Then a solution to x 0 = Ax is E. [ te t te ] te t te te t t 2 e te t e e t [ e e t ] e t e [ e e ] e t e t E. none of these 25. The real 2 2 matrix A has characteristic values [ + ] i and i i with corresponding characteristic vectors and i x (t). If x(t) = satisfies x x 2 (t) = Ax and x 2 (t) = e t (cos t +sint) thenx (t) = e t (sin t cost) e t (sin t 2cost) e t (cos t sin t) e t (cos t sin t) E. none of these
9 ANSWER KEY. D 4. E 2. C 5. B. C 6. C 4. A 7. B 5. E 8. D 6. D 9. C 7. B 20. A 8. C 2. B 9. B 22. B 0. A 2. C. A 24. A 2. C 25. D.
MA 262 Spring 1993 FINAL EXAM INSTRUCTIONS. 1. You must use a #2 pencil on the mark sense sheet (answer sheet).
MA 6 Spring 993 FINAL EXAM INSTRUCTIONS NAME. You must use a # pencil on the mark sense sheet (answer sheet).. On the mark sense sheet, fill in the instructor s name and the course number. 3. Fill in your
More informationMA 262, Fall 2017, Final Version 01(Green)
INSTRUCTIONS MA 262, Fall 2017, Final Version 01(Green) (1) Switch off your phone upon entering the exam room. (2) Do not open the exam booklet until you are instructed to do so. (3) Before you open the
More informationSTUDENT NAME: STUDENT SIGNATURE: STUDENT ID NUMBER: SECTION NUMBER RECITATION INSTRUCTOR:
MA262 FINAL EXAM SPRING 2016 MAY 2, 2016 TEST NUMBER 01 INSTRUCTIONS: 1. Do not open the exam booklet until you are instructed to do so. 2. Before you open the booklet fill in the information below and
More informationReduction to the associated homogeneous system via a particular solution
June PURDUE UNIVERSITY Study Guide for the Credit Exam in (MA 5) Linear Algebra This study guide describes briefly the course materials to be covered in MA 5. In order to be qualified for the credit, one
More information3. Identify and find the general solution of each of the following first order differential equations.
Final Exam MATH 33, Sample Questions. Fall 7. y = Cx 3 3 is the general solution of a differential equation. Find the equation. Answer: y = 3y + 9 xy. y = C x + C x is the general solution of a differential
More informationMA 265 FINAL EXAM Fall 2012
MA 265 FINAL EXAM Fall 22 NAME: INSTRUCTOR S NAME:. There are a total of 25 problems. You should show work on the exam sheet, and pencil in the correct answer on the scantron. 2. No books, notes, or calculators
More informationMATH 3321 Sample Questions for Exam 3. 3y y, C = Perform the indicated operations, if possible: (a) AC (b) AB (c) B + AC (d) CBA
MATH 33 Sample Questions for Exam 3. Find x and y so that x 4 3 5x 3y + y = 5 5. x = 3/7, y = 49/7. Let A = 3 4, B = 3 5, C = 3 Perform the indicated operations, if possible: a AC b AB c B + AC d CBA AB
More informationMath 322. Spring 2015 Review Problems for Midterm 2
Linear Algebra: Topic: Linear Independence of vectors. Question. Math 3. Spring Review Problems for Midterm Explain why if A is not square, then either the row vectors or the column vectors of A are linearly
More information3. Identify and find the general solution of each of the following first order differential equations.
Final Exam MATH 33, Sample Questions. Fall 6. y = Cx 3 3 is the general solution of a differential equation. Find the equation. Answer: y = 3y + 9 xy. y = C x + C is the general solution of a differential
More informationQ1 /10 Q2 /10 Q3 /10 Q4 /10 Q5 /10 Q6 /10 Q7 /10 Q8 /10 Q9 /10 Q10 /10 Total /100
Midterm Maths 240 - Calculus III July 23, 2012 Name: Solutions Instructions You have the entire period (1PM-3:10PM) to complete the test. You can use one 5.5 8.5 half-page for formulas, but no electronic
More informationMath 266 Midterm Exam 2
Math 266 Midterm Exam 2 March 2st 26 Name: Ground Rules. Calculator is NOT allowed. 2. Show your work for every problem unless otherwise stated (partial credits are available). 3. You may use one 4-by-6
More informationPolytechnic Institute of NYU MA 2132 Final Practice Answers Fall 2012
Polytechnic Institute of NYU MA Final Practice Answers Fall Studying from past or sample exams is NOT recommended. If you do, it should be only AFTER you know how to do all of the homework and worksheet
More information1. Let m 1 and n 1 be two natural numbers such that m > n. Which of the following is/are true?
. Let m and n be two natural numbers such that m > n. Which of the following is/are true? (i) A linear system of m equations in n variables is always consistent. (ii) A linear system of n equations in
More informationMAT Linear Algebra Collection of sample exams
MAT 342 - Linear Algebra Collection of sample exams A-x. (0 pts Give the precise definition of the row echelon form. 2. ( 0 pts After performing row reductions on the augmented matrix for a certain system
More informationMATH 2250 Final Exam Solutions
MATH 225 Final Exam Solutions Tuesday, April 29, 28, 6: 8:PM Write your name and ID number at the top of this page. Show all your work. You may refer to one double-sided sheet of notes during the exam
More informationMath 266, Midterm Exam 1
Math 266, Midterm Exam 1 February 19th 2016 Name: Ground Rules: 1. Calculator is NOT allowed. 2. Show your work for every problem unless otherwise stated (partial credits are available). 3. You may use
More informationSolution: In standard form (i.e. y + P (t)y = Q(t)) we have y t y = cos(t)
Math 380 Practice Final Solutions This is longer than the actual exam, which will be 8 to 0 questions (some might be multiple choice). You are allowed up to two sheets of notes (both sides) and a calculator,
More informationForm A. 1. Which of the following is a second-order, linear, homogenous differential equation? 2
Form A Math 4 Common Part of Final Exam December 6, 996 INSTRUCTIONS: Please enter your NAME, ID NUMBER, FORM designation, and INDEX NUMBER on your op scan sheet. The index number should be written in
More informationMath 250B Final Exam Review Session Spring 2015 SOLUTIONS
Math 5B Final Exam Review Session Spring 5 SOLUTIONS Problem Solve x x + y + 54te 3t and y x + 4y + 9e 3t λ SOLUTION: We have det(a λi) if and only if if and 4 λ only if λ 3λ This means that the eigenvalues
More informationAPPM 2360: Final Exam 10:30am 1:00pm, May 6, 2015.
APPM 23: Final Exam :3am :pm, May, 25. ON THE FRONT OF YOUR BLUEBOOK write: ) your name, 2) your student ID number, 3) lecture section, 4) your instructor s name, and 5) a grading table for eight questions.
More information2.3. VECTOR SPACES 25
2.3. VECTOR SPACES 25 2.3 Vector Spaces MATH 294 FALL 982 PRELIM # 3a 2.3. Let C[, ] denote the space of continuous functions defined on the interval [,] (i.e. f(x) is a member of C[, ] if f(x) is continuous
More informationSTUDENT NAME: STUDENT SIGNATURE: STUDENT ID NUMBER: SECTION NUMBER RECITATION INSTRUCTOR:
MA262 EXAM I SPRING 2016 FEBRUARY 25, 2016 TEST NUMBER 01 INSTRUCTIONS: 1. Do not open the exam booklet until you are instructed to do so. 2. Before you open the booklet fill in the information below and
More informationMath 1431 Final Exam Review
Math 1431 Final Exam Review Comprehensive exam. I recommend you study all past reviews and practice exams as well. Know all rules/formulas. Make a reservation for the final exam. If you miss it, go back
More informationMATH 223 FINAL EXAM APRIL, 2005
MATH 223 FINAL EXAM APRIL, 2005 Instructions: (a) There are 10 problems in this exam. Each problem is worth five points, divided equally among parts. (b) Full credit is given to complete work only. Simply
More information1. Select the unique answer (choice) for each problem. Write only the answer.
MATH 5 Practice Problem Set Spring 7. Select the unique answer (choice) for each problem. Write only the answer. () Determine all the values of a for which the system has infinitely many solutions: x +
More informationx 3y 2z = 6 1.2) 2x 4y 3z = 8 3x + 6y + 8z = 5 x + 3y 2z + 5t = 4 1.5) 2x + 8y z + 9t = 9 3x + 5y 12z + 17t = 7
Linear Algebra and its Applications-Lab 1 1) Use Gaussian elimination to solve the following systems x 1 + x 2 2x 3 + 4x 4 = 5 1.1) 2x 1 + 2x 2 3x 3 + x 4 = 3 3x 1 + 3x 2 4x 3 2x 4 = 1 x + y + 2z = 4 1.4)
More informationDo not write below here. Question Score Question Score Question Score
MATH-2240 Friday, May 4, 2012, FINAL EXAMINATION 8:00AM-12:00NOON Your Instructor: Your Name: 1. Do not open this exam until you are told to do so. 2. This exam has 30 problems and 18 pages including this
More informationNo books, notes, any calculator, or electronic devices are allowed on this exam. Show all of your steps in each answer to receive a full credit.
MTH 309-001 Fall 2016 Exam 1 10/05/16 Name (Print): PID: READ CAREFULLY THE FOLLOWING INSTRUCTION Do not open your exam until told to do so. This exam contains 7 pages (including this cover page) and 7
More informationMATH 304 Linear Algebra Lecture 10: Linear independence. Wronskian.
MATH 304 Linear Algebra Lecture 10: Linear independence. Wronskian. Spanning set Let S be a subset of a vector space V. Definition. The span of the set S is the smallest subspace W V that contains S. If
More information1. What is the determinant of the following matrix? a 1 a 2 4a 3 2a 2 b 1 b 2 4b 3 2b c 1. = 4, then det
What is the determinant of the following matrix? 3 4 3 4 3 4 4 3 A 0 B 8 C 55 D 0 E 60 If det a a a 3 b b b 3 c c c 3 = 4, then det a a 4a 3 a b b 4b 3 b c c c 3 c = A 8 B 6 C 4 D E 3 Let A be an n n matrix
More informationMATH 251 Examination I October 10, 2013 FORM A. Name: Student Number: Section:
MATH 251 Examination I October 10, 2013 FORM A Name: Student Number: Section: This exam has 13 questions for a total of 100 points. Show all you your work! In order to obtain full credit for partial credit
More informationMATH 251 Examination I October 8, 2015 FORM A. Name: Student Number: Section:
MATH 251 Examination I October 8, 2015 FORM A Name: Student Number: Section: This exam has 14 questions for a total of 100 points. Show all you your work! In order to obtain full credit for partial credit
More informationMath 2114 Common Final Exam May 13, 2015 Form A
Math 4 Common Final Exam May 3, 5 Form A Instructions: Using a # pencil only, write your name and your instructor s name in the blanks provided. Write your student ID number and your CRN in the blanks
More information(b) If a multiple of one row of A is added to another row to produce B then det(b) =det(a).
.(5pts) Let B = 5 5. Compute det(b). (a) (b) (c) 6 (d) (e) 6.(5pts) Determine which statement is not always true for n n matrices A and B. (a) If two rows of A are interchanged to produce B, then det(b)
More informationLinear Algebra Final Exam Study Guide Solutions Fall 2012
. Let A = Given that v = 7 7 67 5 75 78 Linear Algebra Final Exam Study Guide Solutions Fall 5 explain why it is not possible to diagonalize A. is an eigenvector for A and λ = is an eigenvalue for A diagonalize
More informationUnderstand the existence and uniqueness theorems and what they tell you about solutions to initial value problems.
Review Outline To review for the final, look over the following outline and look at problems from the book and on the old exam s and exam reviews to find problems about each of the following topics.. Basics
More informationQ1 Q2 Q3 Q4 Tot Letr Xtra
Mathematics 54.1 Final Exam, 12 May 2011 180 minutes, 90 points NAME: ID: GSI: INSTRUCTIONS: You must justify your answers, except when told otherwise. All the work for a question should be on the respective
More information5.) For each of the given sets of vectors, determine whether or not the set spans R 3. Give reasons for your answers.
Linear Algebra - Test File - Spring Test # For problems - consider the following system of equations. x + y - z = x + y + 4z = x + y + 6z =.) Solve the system without using your calculator..) Find the
More informationMath 601 Solutions to Homework 3
Math 601 Solutions to Homework 3 1 Use Cramer s Rule to solve the following system of linear equations (Solve for x 1, x 2, and x 3 in terms of a, b, and c 2x 1 x 2 + 7x 3 = a 5x 1 2x 2 x 3 = b 3x 1 x
More informationLINEAR ALGEBRA QUESTION BANK
LINEAR ALGEBRA QUESTION BANK () ( points total) Circle True or False: TRUE / FALSE: If A is any n n matrix, and I n is the n n identity matrix, then I n A = AI n = A. TRUE / FALSE: If A, B are n n matrices,
More informationQuestion: Total. Points:
MATH 308 May 23, 2011 Final Exam Name: ID: Question: 1 2 3 4 5 6 7 8 9 Total Points: 0 20 20 20 20 20 20 20 20 160 Score: There are 9 problems on 9 pages in this exam (not counting the cover sheet). Make
More information(Practice)Exam in Linear Algebra
(Practice)Exam in Linear Algebra May 016 First Year at The Faculties of Engineering and Science and of Health This test has 10 pages and 16 multiple-choice problems. In two-sided print. It is allowed to
More informationTMA Calculus 3. Lecture 21, April 3. Toke Meier Carlsen Norwegian University of Science and Technology Spring 2013
TMA4115 - Calculus 3 Lecture 21, April 3 Toke Meier Carlsen Norwegian University of Science and Technology Spring 2013 www.ntnu.no TMA4115 - Calculus 3, Lecture 21 Review of last week s lecture Last week
More informationEx. 1. Find the general solution for each of the following differential equations:
MATH 261.007 Instr. K. Ciesielski Spring 2010 NAME (print): SAMPLE TEST # 2 Solve the following exercises. Show your work. (No credit will be given for an answer with no supporting work shown.) Ex. 1.
More informationLinear Algebra. and
Instructions Please answer the six problems on your own paper. These are essay questions: you should write in complete sentences. 1. Are the two matrices 1 2 2 1 3 5 2 7 and 1 1 1 4 4 2 5 5 2 row equivalent?
More informationMath 308 Week 8 Solutions
Math 38 Week 8 Solutions There is a solution manual to Chapter 4 online: www.pearsoncustom.com/tamu math/. This online solutions manual contains solutions to some of the suggested problems. Here are solutions
More informationSolution to Final, MATH 54, Linear Algebra and Differential Equations, Fall 2014
Solution to Final, MATH 54, Linear Algebra and Differential Equations, Fall 24 Name (Last, First): Student ID: Circle your section: 2 Shin 8am 7 Evans 22 Lim pm 35 Etcheverry 22 Cho 8am 75 Evans 23 Tanzer
More informationThis is a closed book exam. No notes or calculators are permitted. We will drop your lowest scoring question for you.
Math 54 Fall 2017 Practice Final Exam Exam date: 12/14/17 Time Limit: 170 Minutes Name: Student ID: GSI or Section: This exam contains 9 pages (including this cover page) and 10 problems. Problems are
More information2. Every linear system with the same number of equations as unknowns has a unique solution.
1. For matrices A, B, C, A + B = A + C if and only if A = B. 2. Every linear system with the same number of equations as unknowns has a unique solution. 3. Every linear system with the same number of equations
More informationLinear transformations
Linear transformations Samy Tindel Purdue University Differential equations and linear algebra - MA 262 Taken from Differential equations and linear algebra by Goode and Annin Samy T. Linear transformations
More informationUNIVERSITY OF SOUTHAMPTON
UNIVERSITY OF SOUTHAMPTON MATH03W SEMESTER EXAMINATION 0/ MATHEMATICS FOR ELECTRONIC & ELECTRICAL ENGINEERING Duration: 0 min This paper has two parts, part A and part B. Answer all questions from part
More informationMath 315: Linear Algebra Solutions to Assignment 7
Math 5: Linear Algebra s to Assignment 7 # Find the eigenvalues of the following matrices. (a.) 4 0 0 0 (b.) 0 0 9 5 4. (a.) The characteristic polynomial det(λi A) = (λ )(λ )(λ ), so the eigenvalues are
More informationMA 266 Review Topics - Exam # 2 (updated)
MA 66 Reiew Topics - Exam # updated Spring First Order Differential Equations Separable, st Order Linear, Homogeneous, Exact Second Order Linear Homogeneous with Equations Constant Coefficients The differential
More informationMath 369 Exam #2 Practice Problem Solutions
Math 369 Exam #2 Practice Problem Solutions 2 5. Is { 2, 3, 8 } a basis for R 3? Answer: No, it is not. To show that it is not a basis, it suffices to show that this is not a linearly independent set.
More informationMath 21b Final Exam Thursday, May 15, 2003 Solutions
Math 2b Final Exam Thursday, May 5, 2003 Solutions. (20 points) True or False. No justification is necessary, simply circle T or F for each statement. T F (a) If W is a subspace of R n and x is not in
More informationMATH 24 EXAM 3 SOLUTIONS
MATH 4 EXAM 3 S Consider the equation y + ω y = cosω t (a) Find the general solution of the homogeneous equation (b) Find the particular solution of the non-homogeneous equation using the method of Undetermined
More informationOnly this exam and a pen or pencil should be on your desk.
Lin. Alg. & Diff. Eq., Spring 16 Student ID Circle your section: 31 MWF 8-9A 11 LATIMER LIANG 33 MWF 9-1A 11 LATIMER SHAPIRO 36 MWF 1-11A 37 CORY SHAPIRO 37 MWF 11-1P 736 EVANS WORMLEIGHTON 39 MWF -5P
More informationSolutions to Final Exam 2011 (Total: 100 pts)
Page of 5 Introduction to Linear Algebra November 7, Solutions to Final Exam (Total: pts). Let T : R 3 R 3 be a linear transformation defined by: (5 pts) T (x, x, x 3 ) = (x + 3x + x 3, x x x 3, x + 3x
More informationMathQuest: Differential Equations
MathQuest: Differential Equations Solutions to Linear Systems. Consider the linear system given by dy dt = 4 True or False: Y e t t = is a solution. c False, but I am not very confident Y.. Consider the
More informationMATH 220 FINAL EXAMINATION December 13, Name ID # Section #
MATH 22 FINAL EXAMINATION December 3, 2 Name ID # Section # There are??multiple choice questions. Each problem is worth 5 points. Four possible answers are given for each problem, only one of which is
More informationUNIVERSITY OF SOUTHAMPTON. A foreign language dictionary (paper version) is permitted provided it contains no notes, additions or annotations.
UNIVERSITY OF SOUTHAMPTON MATH055W SEMESTER EXAMINATION 03/4 MATHEMATICS FOR ELECTRONIC & ELECTRICAL ENGINEERING Duration: 0 min Solutions Only University approved calculators may be used. A foreign language
More information1. Diagonalize the matrix A if possible, that is, find an invertible matrix P and a diagonal
. Diagonalize the matrix A if possible, that is, find an invertible matrix P and a diagonal 3 9 matrix D such that A = P DP, for A =. 3 4 3 (a) P = 4, D =. 3 (b) P = 4, D =. (c) P = 4 8 4, D =. 3 (d) P
More informationLinear Algebra Exercises
9. 8.03 Linear Algebra Exercises 9A. Matrix Multiplication, Rank, Echelon Form 9A-. Which of the following matrices is in row-echelon form? 2 0 0 5 0 (i) (ii) (iii) (iv) 0 0 0 (v) [ 0 ] 0 0 0 0 0 0 0 9A-2.
More information+ i. cos(t) + 2 sin(t) + c 2.
MATH HOMEWORK #7 PART A SOLUTIONS Problem 7.6.. Consider the system x = 5 x. a Express the general solution of the given system of equations in terms of realvalued functions. b Draw a direction field,
More informationAnswer Key b c d e. 14. b c d e. 15. a b c e. 16. a b c e. 17. a b c d. 18. a b c e. 19. a b d e. 20. a b c e. 21. a c d e. 22.
Math 20580 Answer Key 1 Your Name: Final Exam May 8, 2007 Instructor s name: Record your answers to the multiple choice problems by placing an through one letter for each problem on this answer sheet.
More informationMath 4B Notes. Written by Victoria Kala SH 6432u Office Hours: T 12:45 1:45pm Last updated 7/24/2016
Math 4B Notes Written by Victoria Kala vtkala@math.ucsb.edu SH 6432u Office Hours: T 2:45 :45pm Last updated 7/24/206 Classification of Differential Equations The order of a differential equation is the
More informationFormulas that must be memorized:
Formulas that must be memorized: Position, Velocity, Acceleration Speed is increasing when v(t) and a(t) have the same signs. Speed is decreasing when v(t) and a(t) have different signs. Section I: Limits
More informationFinal Exam Practice 3, May 8, 2018 Math 21b, Spring Name:
Final Exam Practice 3, May 8, 8 Math b, Spring 8 Name: MWF 9 Oliver Knill MWF Jeremy Hahn MWF Hunter Spink MWF Matt Demers MWF Yu-Wen Hsu MWF Ben Knudsen MWF Sander Kupers MWF Hakim Walker TTH Ana Balibanu
More informationLinear Algebra- Final Exam Review
Linear Algebra- Final Exam Review. Let A be invertible. Show that, if v, v, v 3 are linearly independent vectors, so are Av, Av, Av 3. NOTE: It should be clear from your answer that you know the definition.
More informationYORK UNIVERSITY. Faculty of Science Department of Mathematics and Statistics MATH M Test #1. July 11, 2013 Solutions
YORK UNIVERSITY Faculty of Science Department of Mathematics and Statistics MATH 222 3. M Test # July, 23 Solutions. For each statement indicate whether it is always TRUE or sometimes FALSE. Note: For
More informationFinal exam for MATH 1272: Calculus II, Spring 2015
Final exam for MATH 1272: Calculus II, Spring 2015 Name: ID #: Signature: Section Number: Teaching Assistant: General Instructions: Please don t turn over this page until you are directed to begin. There
More informationMATH 251 Examination I October 5, 2017 FORM A. Name: Student Number: Section:
MATH 251 Examination I October 5, 2017 FORM A Name: Student Number: Section: This exam has 13 questions for a total of 100 points. Show all your work! In order to obtain full credit for partial credit
More informationMidterm 1 NAME: QUESTION 1 / 10 QUESTION 2 / 10 QUESTION 3 / 10 QUESTION 4 / 10 QUESTION 5 / 10 QUESTION 6 / 10 QUESTION 7 / 10 QUESTION 8 / 10
Midterm 1 NAME: RULES: You will be given the entire period (1PM-3:10PM) to complete the test. You can use one 3x5 notecard for formulas. There are no calculators nor those fancy cellular phones nor groupwork
More information2t t dt.. So the distance is (t2 +6) 3/2
Math 8, Solutions to Review for the Final Exam Question : The distance is 5 t t + dt To work that out, integrate by parts with u t +, so that t dt du The integral is t t + dt u du u 3/ (t +) 3/ So the
More informationdx n a 1(x) dy
HIGHER ORDER DIFFERENTIAL EQUATIONS Theory of linear equations Initial-value and boundary-value problem nth-order initial value problem is Solve: a n (x) dn y dx n + a n 1(x) dn 1 y dx n 1 +... + a 1(x)
More informationQuestion 7. Consider a linear system A x = b with 4 unknown. x = [x 1, x 2, x 3, x 4 ] T. The augmented
Question. How many solutions does x 6 = 4 + i have Practice Problems 6 d) 5 Question. Which of the following is a cubed root of the complex number i. 6 e i arctan() e i(arctan() π) e i(arctan() π)/3 6
More informationANSWERS. E k E 2 E 1 A = B
MATH 7- Final Exam Spring ANSWERS Essay Questions points Define an Elementary Matrix Display the fundamental matrix multiply equation which summarizes a sequence of swap, combination and multiply operations,
More informationReview Problems for Exam 2
Review Problems for Exam 2 This is a list of problems to help you review the material which will be covered in the final. Go over the problem carefully. Keep in mind that I am going to put some problems
More informationReview For the Final: Problem 1 Find the general solutions of the following DEs. a) x 2 y xy y 2 = 0 solution: = 0 : homogeneous equation.
Review For the Final: Problem 1 Find the general solutions of the following DEs. a) x 2 y xy y 2 = 0 solution: y y x y2 = 0 : homogeneous equation. x2 v = y dy, y = vx, and x v + x dv dx = v + v2. dx =
More informationand let s calculate the image of some vectors under the transformation T.
Chapter 5 Eigenvalues and Eigenvectors 5. Eigenvalues and Eigenvectors Let T : R n R n be a linear transformation. Then T can be represented by a matrix (the standard matrix), and we can write T ( v) =
More informationMath 1553, Introduction to Linear Algebra
Learning goals articulate what students are expected to be able to do in a course that can be measured. This course has course-level learning goals that pertain to the entire course, and section-level
More informationMath : Solutions to Assignment 10
Math -3: Solutions to Assignment. There are two tanks. The first tank initially has gallons of pure water. The second tank initially has 8 gallons of a water/salt solution with oz of salt. Both tanks drain
More informationAPPM 2360 Section Exam 3 Wednesday November 19, 7:00pm 8:30pm, 2014
APPM 2360 Section Exam 3 Wednesday November 9, 7:00pm 8:30pm, 204 ON THE FRONT OF YOUR BLUEBOOK write: () your name, (2) your student ID number, (3) lecture section, (4) your instructor s name, and (5)
More informationMath 18, Linear Algebra, Lecture C00, Spring 2017 Review and Practice Problems for Final Exam
Math 8, Linear Algebra, Lecture C, Spring 7 Review and Practice Problems for Final Exam. The augmentedmatrix of a linear system has been transformed by row operations into 5 4 8. Determine if the system
More informationProperties of Linear Transformations from R n to R m
Properties of Linear Transformations from R n to R m MATH 322, Linear Algebra I J. Robert Buchanan Department of Mathematics Spring 2015 Topic Overview Relationship between the properties of a matrix transformation
More informationFinal Exam Practice 7, May 9, 2017 Math 21b, Spring 2017
Final Exam Practice 7, May 9, 207 Math 2b, Spring 207 MWF 9 Oliver Knill MWF 0 Akhil Mathew MWF 0 Ian Shipman MWF Rosalie Belanger-Rioux MWF Stephen Hermes MWF Can Kozcaz MWF Zhengwei Liu MWF 2 Stephen
More information(a) II and III (b) I (c) I and III (d) I and II and III (e) None are true.
1 Which of the following statements is always true? I The null space of an m n matrix is a subspace of R m II If the set B = {v 1,, v n } spans a vector space V and dimv = n, then B is a basis for V III
More informationMath 224, Fall 2007 Exam 3 Thursday, December 6, 2007
Math 224, Fall 2007 Exam 3 Thursday, December 6, 2007 You have 1 hour and 20 minutes. No notes, books, or other references. You are permitted to use Maple during this exam, but you must start with a blank
More informationA matrix is a rectangular array of. objects arranged in rows and columns. The objects are called the entries. is called the size of the matrix, and
Section 5.5. Matrices and Vectors A matrix is a rectangular array of objects arranged in rows and columns. The objects are called the entries. A matrix with m rows and n columns is called an m n matrix.
More informationMATH 2360 REVIEW PROBLEMS
MATH 2360 REVIEW PROBLEMS Problem 1: In (a) (d) below, either compute the matrix product or indicate why it does not exist: ( )( ) 1 2 2 1 (a) 0 1 1 2 ( ) 0 1 2 (b) 0 3 1 4 3 4 5 2 5 (c) 0 3 ) 1 4 ( 1
More informationPRACTICE FINAL EXAM. why. If they are dependent, exhibit a linear dependence relation among them.
Prof A Suciu MTH U37 LINEAR ALGEBRA Spring 2005 PRACTICE FINAL EXAM Are the following vectors independent or dependent? If they are independent, say why If they are dependent, exhibit a linear dependence
More informationDo not write in this space. Problem Possible Score Number Points Total 48
MTH 337. Name MTH 337. Differential Equations Exam II March 15, 2019 T. Judson Do not write in this space. Problem Possible Score Number Points 1 8 2 10 3 15 4 15 Total 48 Directions Please Read Carefully!
More informationV 1 V 2. r 3. r 6 r 4. Math 2250 Lab 12 Due Date : 4/25/2017 at 6:00pm
Math 50 Lab 1 Name: Due Date : 4/5/017 at 6:00pm 1. In the previous lab you considered the input-output model below with pure water flowing into the system, C 1 = C 5 =0. r 1, C 1 r 5, C 5 r r V 1 V r
More informationFinal Exam Practice 8, May 8, 2018 Math 21b, Spring 2018
Final Exam Practice 8, May 8, 208 Math 2b, Spring 208 MWF 9 Oliver Knill MWF 0 Jeremy Hahn MWF 0 Hunter Spink MWF Matt Demers MWF Yu-Wen Hsu MWF Ben Knudsen MWF Sander Kupers MWF 2 Hakim Walker TTH 0 Ana
More informationLINEAR ALGEBRA 1, 2012-I PARTIAL EXAM 3 SOLUTIONS TO PRACTICE PROBLEMS
LINEAR ALGEBRA, -I PARTIAL EXAM SOLUTIONS TO PRACTICE PROBLEMS Problem (a) For each of the two matrices below, (i) determine whether it is diagonalizable, (ii) determine whether it is orthogonally diagonalizable,
More informationMath 216 Final Exam 24 April, 2017
Math 216 Final Exam 24 April, 2017 This sample exam is provided to serve as one component of your studying for this exam in this course. Please note that it is not guaranteed to cover the material that
More informationMath 520 Exam 2 Topic Outline Sections 1 3 (Xiao/Dumas/Liaw) Spring 2008
Math 520 Exam 2 Topic Outline Sections 1 3 (Xiao/Dumas/Liaw) Spring 2008 Exam 2 will be held on Tuesday, April 8, 7-8pm in 117 MacMillan What will be covered The exam will cover material from the lectures
More informationEK102 Linear Algebra PRACTICE PROBLEMS for Final Exam Spring 2016
EK102 Linear Algebra PRACTICE PROBLEMS for Final Exam Spring 2016 Answer the questions in the spaces provided on the question sheets. You must show your work to get credit for your answers. There will
More informationMB4018 Differential equations
MB4018 Differential equations Part II http://www.staff.ul.ie/natalia/mb4018.html Prof. Natalia Kopteva Spring 2015 MB4018 (Spring 2015) Differential equations Part II 0 / 69 Section 1 Second-Order Linear
More informationMath 323 Exam 2 Sample Problems Solution Guide October 31, 2013
Math Exam Sample Problems Solution Guide October, Note that the following provides a guide to the solutions on the sample problems, but in some cases the complete solution would require more work or justification
More information