TRUE OR FALSE a. If AB = [0], then A or B is a zero matrix.  b. For a square matrix A,AAT = ATA.  c. Let A and B be 2x2 matrices. The equation (A-B)(A+B)=A2-B2 is correct.

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.2: Guassian Elimination And Matrix Methods
Problem 92E
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TRUE OR FALSE

a. If AB = [0], then A or B is a zero matrix. 

b. For a square matrix A,AAT = ATA. 

c. Let A and B be 2x2 matrices. The equation (A-B)(A+B)=A2-B2 is correct.

 

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