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0 votes
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in Linear Equations by (49.9k points)
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If A and B are two nonzero square matrices of the same order such that AB = 0 then 

A. │A│=0 or │B│= 0 

B.│A│=0 and │B│= 0 

C.│A│≠0 and │B│≠ 0 

D. None of these

1 Answer

+1 vote
by (55.0k points)
selected by
 
Best answer

s AB is a 0 matrix its determinant has to be 0. 

So │AB│=│A││B│= 0 

So │A│=│B│= 0

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