## Question

###### Chapter 2 Matrices 72matrices A_ B, C shown, compute Exercises 23-30. For the when defined, and give a reason for the matrir expressions; failure when not definedB =%C23. AB BA 24. A(BC) , (AB)C 25. BC, CB 26. AAT, ATA 27. BBT BTB 28. ccT , CTc 29. (BCJA , (BC) (BC) 30. (BC)TA, A(BC)T

Chapter 2 Matrices 72 matrices A_ B, C shown, compute Exercises 23-30. For the when defined, and give a reason for the matrir expressions; failure when not defined B = % C 23. AB BA 24. A(BC) , (AB)C 25. BC, CB 26. AAT, ATA 27. BBT BTB 28. ccT , CTc 29. (BCJA , (BC) (BC) 30. (BC)TA, A(BC)T

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