
(5 points) Consider the following matrix for CER. [ 2 c cl I c 5 c...
For the following problems use: Annx n matrix A is invertible RREF(A) = I rank(A) - n A 2 x 2 matrix A is invertible = det(A) 0 3 singular (non-invertible). For which value(s) of h is A = -2 -1 -4 Choose... Choose... 6 2 h-2 a 0,b 0,c+0,d +0 A = 4 -1 C 0 x-2 or x 4 For which values of x is A = invertible a 0,b 0,c 0,d=0 4 x 2 X#1 and x2...
4. Consider the following matrix [1 0 -27 A=000 L-2 0 4] (a) (3 points) Find the characteristic polynomial of A. (b) (4 points) Find the eigenvalues of A. Give the algebraic multiplicity of each eigenvalue (c) (8 points) Find the eigenvectors corresponding to the eigenvalues found in part (b). (d) (4 points) Give a diagonal matrix D and an invertible matrix P such that A = PDP-1 (e) (6 points) Compute P-and verify that A= PDP- (show your steps).
4. (3 points) Find all values of x so that the following matrix is invertible: 2 2 0 1 2 3 0 2 -C 1 0 3 0 A= 0 0 0 0 2-3
Consider a 2 x 2 matrix A that has eigenvalues 11 -2 and A2 = 5. Find the eigenvalues of A², A- and A - 21. Is the matrix A + 21 invertible? Explain. Suppose that A is a 10 x 10 matrix and that Avi V1 Av2 = 202, x = 2v1 - 02 Find real numbers a, 8 such that A’x = av. + 802
2 invertible? C For which values of c is the matrix 8 O c 4 c =-4 Both of the above, i.e., c +4 Neither of the above, i.e., c +4. Suppose that the following row operations: interchange rows 1 and 3 multiply row 3 by 1/2 add -3 times row 1 to row 2 2 1 7 in this order, transform a matrix A into B = | 0 4-5 L0 0 3 What is the determinant of A?...
QUESTION 4. Consider the following matrix: I 8 0 167 A= -7 7 0 [ 0 1 2 (a) Find the rank of A Hence, or otherwise find the nullity of A (c) Hence, or otherwise, is A invertible? (d) Find a basis for the nullspace of A. Prove that this set is a basis. [3 marks] [1 marks [1 marks) (3 marks]
Question 14 [10 points] Given the following matrix A, find an invertible matrix U so that A is equal to UR, when R is the reduced row-echelon form of A: You can resize a matrix (when appropriate) by clicking and dragging the bottom right corner of the matrix. 5 -10 5 50 -15 A = 2 -3 1 17 -5 -1-24 7 -3 4 000 000 00 0
Question 14 [10 points] Given the following matrix A, find an invertible...
Problem 2 Let A be an n x n matrix which is not 0 but A-0 Let I be the identity matrix. a) (10 Points) Show that A is not diagonalizable. b) (5 Points) Show that A is not invertible. e) (5 Points) Show that I-A is invertible and find its inverse.
Problem 12. (6 points) Determine all values of k for which the following matrix is invertible. [1 -1 21 1 1 k | 2 4 k²
Question 7 [10 points) Find conditions on k that will make the matrix A invertible. To enter your answer first select 'always', never', or whether should be equal or not equal to specific values, then enter a value or a list of values separated by commas. k 0 2 A-8k-2 4 2-1 A is invertible: Always Always Never Question 8 [10 When k = Express the follow. When katrix A as a product of elementary matrices: