Question

If A and B are two matrices of order n×n such that A^2B^2=0 .then which of the following is true?
1) B^2A^2=0
2) AB=0
3) either A=0 or B=0
4) either A or B is singular


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Answer 1

Answer:

In my opinion the option a will be the correct answer as per Metrices rules ....