A) A = B
B) AB = BA
C) Either of A or B is a zero matrix
D) Either of A or B is identity matrix
Correct Answer: B
Solution :
[b] \[{{A}^{2}}-{{B}^{2}}=(A-B)(A+B)\] \[{{A}^{2}}-{{B}^{2}}={{A}^{2}}+AB-BA-{{B}^{2}}\Rightarrow \,AB=BA\]You need to login to perform this action.
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