A and B are n* n matrices. show that
let a and b be n*n similar matrices, namely, B=S^-1 AS. show that the matrices a and b have the same characteristic polynomial, det(a-λI)=det(b-λI) and, consequently, the same eigenvalues.
Two n x n matrices A and B are called similar if there is an invertible matrix P such that B = P-AP. Show that two similar matrices enjoy the following properties. (a) They have the same determinant. (b) They have the same eigenvalues: specifically, show that if v is an eigenvector of A with eigenvalue 1, then P-lv is an eigenvector of B with eigenvalue l. (c) For any polynomial p(x), P(A) = 0 is equivalent to p(B) =...
Problem 5. Let n N. The goal of this problem is to show that if two real n x n matrices are similar over C, then they are also similar over IK (a) Prove that for all X, y є Rnxn, the function f(t) det (X + ty) is a polynomial in t. (b) Prove that if X and Y are real n × n matrices such that X + ừ is an invertible complex matrix, then there exists a...
3. Let Y ~ N(aln, σ21n) and matrices B and A be such that BY and (n-1)s-YAY (a) Show that B = n-11, and A = 1-n-J where I is the identity matrix and J is the matrix of all ones (b) Show that A is idempotent. (c) Show that tr(A)- rank(A). ( d ) Compute AB .
Similar Matrices In Exercises 19–22, use the matrix P to show that the matrices A and A′ are similar. P = A = A′ = [1 0 −12 1]
I will give a rate! please show work clearly! thanks! 12. Let A = CD , where C is an invertible n × n matrix and A and D are n × n matrices. Prove that the matrix DC is similar to A. 12. Let A = CD , where C is an invertible n × n matrix and A and D are n × n matrices. Prove that the matrix DC is similar to A.
$3.7, suppose A and B are m x n and n x m matrices respectively. Show that if rnメn and AB- Im, then BA is never In. (Hint: Use a property of trace).
Matrices A and B are called similar if there exists an invertible Matrix P such that: A= PBP^-1 Show that det(A) = det(B)
x n matrices, then A is similar to B if and only if Problem 15 [10 pts] If A, B are two pa(t) = Pb(t).
8 and 11 Will h x n lower triangular matrices. Show it's a w It's a 8. Dan will represent the set of all n x n diagonal matrices. Show it's a subspace of Mr. 9. For a square matrix AE M , define the trace of A, written tr(A) to be the sum of the diagonal entries of A (i.e. if A= a) then tr(A) = 211 + a2 + ... + ann). Show that the following subset of...