Show that if A exists for an n x n matrix A, then A- is unique.
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Determinants
Section3.3: Properties Of Determinants
Problem 63E: Let A be an nn matrix in which the entries of each row sum to zero. Find |A|.
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![(a) Show that if A- exists for an n x n matrix A, then A- is unique.
(b) Sljow that if A and B are nonsingular n xn matrices, then
(AB)-1 = BA.
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3528c913-3dc2-4836-8603-447fc2336605%2F528d1a8e-dead-4fef-b963-1d4deb0fae16%2Fswvlvs_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(a) Show that if A- exists for an n x n matrix A, then A- is unique.
(b) Sljow that if A and B are nonsingular n xn matrices, then
(AB)-1 = BA.
%3D
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