Problem 1E: In Exercises 12, classify the matrix as upper triangular, lower triangular, or diagonal, and decide... Problem 2E: In Exercises 12, classify the matrix as upper triangular, lower triangular, or diagonal, and decide... Problem 3E: In Exercises 36, find the product by inspection. [300010002][214125] Problem 4E: In Exercises 36, find the product by inspection. [325310][400030002] Problem 5E: In Exercises 36, find the product by inspection. [500020003][320441530362222] Problem 6E: In Exercises 36, find the product by inspection. [200010004][413120512][300050002] Problem 7E: In Exercises 710, find A, A2, and Ak (where k is any integer) by inspection. A=[1002] Problem 8E: In Exercises 710, find A2, A2, and Ak (where k is any integer) by inspection. A=[600030005] Problem 9E: In Exercises 710, find A2, A2, and Ak (where k is any integer) by inspection. A=[120001300014] Problem 10E: In Exercises 710, find A2, A2, and Ak (where k is any integer) by inspection. A=[2000040000300002] Problem 11E: In Exercises 1112, compute the product by inspection. [100000003][200050000][000020001] Problem 12E: In Exercises 1112, compute the product by inspection. [100020004][300050007][500020003] Problem 13E: In Exercises 1314, compute the indicated quantity. [1001]39 Problem 14E: In Exercises 1314, compute the indicated quantity [1001]1000 Problem 15E: In Exercises 1516, use what you have learned in this section about multiplying by diagonal matrices... Problem 16E: In Exercises 1516, use what you have learned in this section about multiplying by diagonal matrices... Problem 17E: In Exercises 1718, create a symmetric matrix by substituting appropriate numbers for the s. a. [213]... Problem 18E: In Exercises 1718, create a symmetric matrix by substituting appropriate numbers for the s. a. [030]... Problem 19E: In Exercises 1922, determine by inspection whether the matrix is invertible. [061074002] Problem 20E: In Exercises 1922, determine by inspection whether the matrix is invertible. [124030005] Problem 21E: In Exercises 1922, determine by inspection whether the matrix is invertible. [1000250043401213] Problem 22E: In Exercises 1922, determine by inspection whether the matrix is invertible. [2000310046000385] Problem 23E: In Exercises 2324, find the diagonal entries of AB by inspection. A=[326012001],B=[127053006] Problem 24E: In Exercises 2324, find the diagonal entries of AB by inspection. A=[400200307],B=[600150326] Problem 25E: In Exercises 2526, find all values of the unknown constant(s) for which A is symmetric. A=[43a+51] Problem 26E: In Exercises 2526, find all values of the unknown constant(s) for which A is symmetric.... Problem 27E: In Exercises 2728, find all values of x for which A is invertible A=[x1x2x40x+2x300x4] Problem 28E: In Exercises 2728, find all values of x for which A is invertible. A=[x1200xx130x2x3x+14] Problem 29E: If A is an invertible upper triangular or lower triangular matrix, what can you say about the... Problem 30E: Show that if A is a symmetric n n matrix and B is any n m matrix, then the following products are... Problem 31E: In Exercises 3132, find a diagonal matrix A that satisfies the given condition. A5=[100010001] Problem 32E: In Exercises 3132, find a diagonal matrix A that satisfies the given condition. A2=[900040001] Problem 33E: Verify Theorem 1.7.1(b) for the matrix product AB and Theorem 1.7.1(d) for the matrix A, where... Problem 34E: Let A be an n n symmetric matrix. a. Show that A2 is symmetric. b. Show that 2A2 3A + I is... Problem 35E: Verify Theorem 1.7.4 for the given matrix A. a. A=[2113] b. A=[123217374] Theorem 1.7.4 If A is an... Problem 36E: Find all 3 3 diagonal matrices A that satisfy A23A4I=0 Problem 37E: Let A = [aij] be an n n matrix. Determine whether A is symmetric. a. aij=i2+j2 b. aij=i2j2 c.... Problem 38E: On the basis of your experience with Exercise 37, devise a general test that can be applied to a... Problem 39E: Find an upper triangular matrix that satisfies A3=[13008] Problem 40E: If the n n matrix A can be expressed as A = LU, where L is a lower triangular matrix and U is an... Problem 41E: In the text we defined a matrix A to be symmetric if AT = A. Analogously, a matrix A is said to be... Problem 42E: In the text we defined a matrix A to be symmetric if AT = A. Analogously, a matrix A is said to be... Problem 43E: In the text we defined a matrix A to be symmetric if AT = A. Analogously, a matrix A is said to be... Problem 44E: In the text we defined a matrix A to be symmetric if AT = A. Analogously, a matrix A is said to be... Problem 45E: In the text we defined a matrix A to be symmetric if AT = A. Analogously, a matrix A is said to be... Problem 46E: Prove: If the matrices A and B are both upper triangular or both lower triangular, then the diagonal... Problem 47E: Prove: If ATA = A, then A is symmetric and A = A2. Problem 1TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. a. The... Problem 2TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. b. The... Problem 3TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. c. The... Problem 4TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. d. All... Problem 5TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. e. All... Problem 6TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. f. The... Problem 7TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. g. A... Problem 8TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. h. The... Problem 9TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. i. A... Problem 10TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. j. If A... Problem 11TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. k. If A... Problem 12TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. l. If A2... Problem 13TF: In parts (a)(m) determine whether the statement is true or false, and justify your answer. m. If kA... Problem 1WT format_list_bulleted