Question 3 Not yet answered Marked out of 10.00 P Flag question You are given that, for the (3, 3)-matrix A below, det(A) A = a r [x b s y c t z Then det ((1-5. A)*)* . (4-472) = Save Progr ss Previous page Next page Jump to... Answer Entry Help
discrete mathmatics 119 397 Let A 124 30), then determinant of A,|A| Answer: 1 b + 1 Given the matrix A = 3 8 The value of b such that the det(A) = -1 is Thus the matrix A is called -3 -4 If A = Then A-1 = 5 6 Select one: [ : 0 a. ܒܐܘܬ 0_b. 3 2 2 ܕܐ ܟܬ 3 3 2 0c 5 8 2 5 0_d. [ ܂ 4 0 Let A =...
Question 1 of 8 1.0 Points 11 [100] [o 1 1] , B= 0 1 2 and C = 0 1 2. Which of 10 3 4 10 3 4] Consider the matrices A= 3 4 these matrices is/are invertible? O A. All of them O B. A and B only O C. A and C only OD. B and C only O E. None of them Reset Selection Part 2 of 7 - Question 2 of 8 1.0 Points...
[1 2 37 1. Is the matrix 1 0 1 invertible? If yes, what is its inverse? [O 2 -1 2. A matrix is called symmetric if At = A. What can you say about the shape of a symmetric matrix? Give an example of a symmetric matrix that is not a zero matrix. 3. A matrix is called anti-symmetric if A= -A. What can you say about the shape of an anti- symmetric matrix? Give an example of an...
Given that A is the matrix 5-3 1 1-5 7 6 3 –77 -4 -5] The cofactor expansion of the determinant of A along column 1 is: det(A) = a1 · |A1| + a2 · |A2| + az · |A3|, where a1 = num @ az = numi @ a3 = num @ and A2 = Thus det(A) = num
(3 points) Let A be a 4 x 4 matrix with det(A) = 8. 1. If the matrix B is obtained from mes the second row to the first, then det(B) = 2. If the matrix C is obtained from A by swapping the first and second rows , then det(C) = 3. If the matrix D is obtained from A by multiplying the first row by 5, then det(D) =
: (a) For what values of a, b, and c is the following matrix symmetric? [-3 5a-c I a 2 La +95 c 5a +267 8 . (b) An nxn matrix A is called skew-symmetric if A= -A. What values of a, b, c, and d now make th following matrix skew-symmetric? ſd Sa-c 5a + 267 08-4d C 0 La +95
please help to answer below questions. Multiple answers can also be possible. D Question 4 1 pts Let B-|b, b2 br 1 b br+1 -br) be a non-singular matrix. If column br is replaced by a' and that the resulting matrix is called Ba along with a-Σ-1 yibi. then state the necessary and suffcient condition for Ba to be non-singular. One of y i not necessarilyy.s, is zero is sufficient y ris non-zero is necessary ■ yr is non-zero is...
Problem 8. a) Find the determinant det (A) for the matrix [1 -3 41 A 2 0 -1 1 b) Decide whether the matrix A has an inverse. If the inverse matrix A-1 exists, find its determinant det(A-1).
Question 5: For the Givens-Rotator Q the determinant. (8) ER"." (see page 194 of the text book) show that det(Q), 8)) 1 by expanding 194 THE LEAST SQUARES PROBLEM We now turn our attention to n x n matrices. A plane rotator is a matrix of the form - S Q= (3.2.15) c = cos , 8 = sin 8. All of the entries that have not been filled in are zeros. Thus a plane rotator looks like an identity...