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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Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
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![2. Let A and B be arbitary n x n matrices. If B is invertible, prove that
AB- = B-'A if and only if AB = BA.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbbea9d03-e0eb-4d48-beb5-27420e56a67f%2F04aac947-bb62-4f6b-989a-743edfdea6f8%2Fxo80ro_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. Let A and B be arbitary n x n matrices. If B is invertible, prove that
AB- = B-'A if and only if AB = BA.
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