Suppose that is an eigenvector for both the matrix A and the matrix B, with corresponding eigenvalue X for A and corresponding eigenvalue μ for B. Show that is an eigenvector of A + B and AB. Proof: Since Au Au and Bu= μv: (i) (A + B) = and (ii) ABv A. Au + Bu B. A(Bv) = A(μv) C. λΰ + μύ D. (λ +μ) E. λμυ F. μ(Av) = μ(xv) Q.E.D.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Suppose that is an eigenvector for both the matrix A and the matrix B, with corresponding eigenvalue X for A and corresponding eigenvalue μ for B.
Show that is an eigenvector of A + B and AB.
Proof:
Since Av = A and B = μv:
(i) (A + B) =
and
(ii) ABv=
A. Au + Bu
B. A(Bu) = A(μv)
C. λύ + μύ
D. (X +μ)
E. λμῦ
F. μ(Aΰ) = μ(λύ)
Q.E.D.
Transcribed Image Text:Suppose that is an eigenvector for both the matrix A and the matrix B, with corresponding eigenvalue X for A and corresponding eigenvalue μ for B. Show that is an eigenvector of A + B and AB. Proof: Since Av = A and B = μv: (i) (A + B) = and (ii) ABv= A. Au + Bu B. A(Bu) = A(μv) C. λύ + μύ D. (X +μ) E. λμῦ F. μ(Aΰ) = μ(λύ) Q.E.D.
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