Find x such that the matrix is equal to its own inverse. 7 A = -8 -7 X = 20

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter7: Matrices And Determinants
Section7.2: Operations With Matrices
Problem 1ECP: Solve for a11, a12, a21 and a22 in the matrix equation a11a12a21a22=6324.
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Find x such that the matrix is equal to its own inverse.
7
A =
-8 -7
X = 20
Transcribed Image Text:Find x such that the matrix is equal to its own inverse. 7 A = -8 -7 X = 20
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