• :00Days
  • :00Hours
  • :00Mins
  • 00Seconds
A new era for learning is coming soonSign up for free
Log In Start studying!

Select your language

Suggested languages for you:
Answers without the blur. Sign up and see all textbooks for free! Illustration

Q12E

Expert-verified
Linear Algebra With Applications
Found in: Page 336
Linear Algebra With Applications

Linear Algebra With Applications

Book edition 5th
Author(s) Otto Bretscher
Pages 442 pages
ISBN 9780321796974

Answers without the blur.

Just sign up for free and you're in.

Illustration

Short Answer

For each of the matrices in Exercises 1 through 13, find all real eigenvalues, with their algebraic multiplicities. Show your work. Do not use technology.

[2-2001-100003-4002-3]

Eigenvalues are:

λ1=0,almuu(0)=1λ2=-1,almu(-1)=2λ4=1,almu(1)=1

See the step by step solution

Step by Step Solution

Step 1: Eigenvalues

  • In linear algebra, an eigenvector or characteristic vector of a linear transformation is a nonzero vector that changes at most by a scalar factor when that linear transformation is applied to it. The corresponding eigenvalue, often denoted by λ , is the factor by which the eigenvector is scaled.
  • Eigenvalues of a triangular matrix are its diagonal matrix.

Step 2: Finding all real eigenvalues, with their algebraic multiplicities

Since, given matrix is triangular its eigenvalues are the entries on the main diagonal.

Find eigenvalues using characteristic equation as:

det(A-λl)=02-λ-2001-1-λ00003-λ-4002-3=02-λ-1-λ+23-λ-3-λ+8=0

λ=0,λ2,3=-1,λ4=1

Hence, the answer is:

λ1=0,almuu(0)=1λ2=-1,almu(-1)=2λ4=1,almu(1)=1

Recommended explanations on Math Textbooks

94% of StudySmarter users get better grades.

Sign up for free
94% of StudySmarter users get better grades.