Let A be a diagonalizable n × n matrix and let P be an invertible n...

Let A be a diagonalizable n × n matrix and let P be an invertible n × n matrix such that B = P−1AP is the diagonal form of A. Prove that Ak = PBkP−1, where k is a positive integer. Use the result above to find the indicated power of A. A = 6 0 −4 7 −1 −4 6 0 −4 , A5 A5 =

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Colby Messinger answered 2 years ago

Let A be a diagonalizable n × n matrix and let P be an invertible n...

Let A be a diagonalizable n × n matrix and let P be an invertible n × n matrix such that B = P−1AP is the diagonal form of A. Prove that Ak = PBkP−1, where k is a positive integer. Use the result above to find A5 A = 4 0 −4 5 −1 −4 6 0 −6

Diagonalize the matrix (That is, find a diagonal matrix D and an invertible matrix P such...

Diagonalize the matrix (That is, find a diagonal matrix D and an invertible matrix P such that A=PDP−1. (Do not find the inverse of P). Describe all eigenspaces of A and state the geometric and algebraic multiplicity of each eigenvalue. A= -1 3 0 -4 6 0 0 0 1

Prove: An (n × n) matrix A is not invertible ⇐⇒ one of the eigenvalues of...

Prove: An (n × n) matrix A is not invertible ⇐⇒ one of the eigenvalues of A is λ = 0

Let A be an m × n matrix and B be an m × p matrix....

Let A be an m × n matrix and B be an m × p matrix. Let C =[A | B] be an m×(n + p) matrix. (a) Show that R(C) = R(A) + R(B), where R(·) denotes the range of a matrix. (b) Show that rank(C) = rank(A) + rank(B)−dim(R(A)∩R(B)).

(2) A matrix A is given. Find, if possible, an invertible matrix P and a diagonal...

(2) A matrix A is given. Find, if possible, an invertible matrix P and a diagonal matrix D such that P −1AP = D. Otherwise, explain why A is not diagonalizable. (a) A = −3 0 −5 0 2 0 2 0 3 (b) A = 2 0 −1 1 3 −1 2 0 5 (c) A = 1 −1 2 −1 1 2 2 2 2

Exercise 2.1.39 Let A be a 2×2 invertible matrix, with A = [a b c d]...

Exercise 2.1.39 Let A be a 2×2 invertible matrix, with A = [a b c d] Find a formula for A−1 in terms of a,b, c,d by using elementary row operations

Let v1 be an eigenvector of an n×n matrix A corresponding to λ1, and let v2,...

Let v1 be an eigenvector of an n×n matrix A corresponding to λ1, and let v2, v3 be two linearly independent eigenvectors of A corresponding to λ2, where λ1 is not equal to λ2. Show that v1, v2, v3 are linearly independent.

7. Let n ∈ N with n > 1 and let P be the set of...

7. Let n ∈ N with n > 1 and let P be the set of polynomials with coefficients in R. (a) We define a relation, T, on P as follows: Let f, g ∈ P. Then we say f T g if f −g = c for some c ∈ R. Show that T is an equivalence relation on P. (b) Let R be the set of equivalence classes of P and let F : R → P be...

Let A be an n × n matrix which is not 0 but A2 = 0....

Let A be an n × n matrix which is not 0 but A2 = 0. Let I be the identity matrix. a)Show that A is not diagonalizable. b)Show that A is not invertible. c)Show that I-A is invertible and find its inverse.

Show that the inverse of an invertible matrix A is unique. That is, suppose that B...

Show that the inverse of an invertible matrix A is unique. That is, suppose that B is any matrix such that AB = BA = I. Then show that B = A−1 .

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Let A be a diagonalizable n × n matrix and let P be an invertible n...

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Let A be a diagonalizable n × n matrix and let P be an invertible n...

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