Select all statements from below options that are true for ALL invertible n x n matrices A and B DA. AB = BA B. A+ I, is invertible C. (A + B)(A - B) = A² - B² DD. (AB)-¹ = A-¹B-1 DE. (I, + A)(I, + A-¹) = 21, + A+ A-¹ OF. 9A is invertible Keep in mind that order is critical in a matrix multiplication. AB # BA; ABC BAC...

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Determinants
Section3.CM: Cumulative Review
Problem 29CM
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Select all statements from below options that are true for ALL invertible n x n matrices A and B
DA. AB = BA
B. A+ I, is invertible
C. (A + B)(A - B) = A² - B²
DD. (AB)-¹ = A-¹B-1
DE. (I, + A)(I, + A-¹)=21, + A+ A-¹
OF. 9A is invertible
Keep in mind that order is critical in a matrix multiplication. AB # BA; ABC BAC...
Transcribed Image Text:Select all statements from below options that are true for ALL invertible n x n matrices A and B DA. AB = BA B. A+ I, is invertible C. (A + B)(A - B) = A² - B² DD. (AB)-¹ = A-¹B-1 DE. (I, + A)(I, + A-¹)=21, + A+ A-¹ OF. 9A is invertible Keep in mind that order is critical in a matrix multiplication. AB # BA; ABC BAC...
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