matrix is not easy to do with just row operations, because the

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter7: Eigenvalues And Eigenvectors
Section7.CR: Review Exercises
Problem 64CR: a Find a symmetric matrix B such that B2=A for A=[2112] b Generalize the result of part a by proving...
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Find the characteristic polynomial of the matrix, using either a cofactor expansion or the special formula for 3x 3 determinants. [Note: Finding the characteristic polynomial of a 3x 3 matrix is not easy to do with just row operations, because the
variable 2 is involved.]
-32 -2
The characteristic polynomial is-
(Type an expression using as the variable.)
Transcribed Image Text:Find the characteristic polynomial of the matrix, using either a cofactor expansion or the special formula for 3x 3 determinants. [Note: Finding the characteristic polynomial of a 3x 3 matrix is not easy to do with just row operations, because the variable 2 is involved.] -32 -2 The characteristic polynomial is- (Type an expression using as the variable.)
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