Prove that if both products AB and BA are defined, then AB and BA are square matrices. Assume that A is an m xn matrix and B is apxq matrix. Because AB is defined, you have that --Select- v and so AB is an --Select-- v square matrix. Select--- v and AB is a(n) Select--- matrix. Because BA is defined, you have that Likewise, because BA is defined, -Select-- v and BA is a(n) ---Select-- v matrix. Because AB is defined, you have -Select-- v Therefore, BA is an -Select---- v square matrix.
Prove that if both products AB and BA are defined, then AB and BA are square matrices. Assume that A is an m xn matrix and B is apxq matrix. Because AB is defined, you have that --Select- v and so AB is an --Select-- v square matrix. Select--- v and AB is a(n) Select--- matrix. Because BA is defined, you have that Likewise, because BA is defined, -Select-- v and BA is a(n) ---Select-- v matrix. Because AB is defined, you have -Select-- v Therefore, BA is an -Select---- v square matrix.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.3: Matrix Algebra
Problem 85E: Determine if the statement is true or false. If the statement is false, then correct it and make it...
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![Prove that if both products AB and BA are defined, then AB and BA are square matrices.
Assume that A is an m xn matrix and B is a pxq matrix. Because AB is defined, you have that ---Select--- v and AB is a(n) ---Select--- v matrix. Because BA is defined, you have that
--Select--- v and so AB is an
Select--- v square matrix.
Likewise, because BA is defined, ---Select-- v and BA is a(n) ---Select--- v matrix. Because AB is defined, you have --Select-- v. Therefore, BA is an ---Select--- v square matrix.
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Transcribed Image Text:Prove that if both products AB and BA are defined, then AB and BA are square matrices.
Assume that A is an m xn matrix and B is a pxq matrix. Because AB is defined, you have that ---Select--- v and AB is a(n) ---Select--- v matrix. Because BA is defined, you have that
--Select--- v and so AB is an
Select--- v square matrix.
Likewise, because BA is defined, ---Select-- v and BA is a(n) ---Select--- v matrix. Because AB is defined, you have --Select-- v. Therefore, BA is an ---Select--- v square matrix.
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