Q.
A and B be 3 x 3 matrices. Then, AB = O implies
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a
A=0 and B=0
b
A=0and B=0
c
A=0 or B=0
d
A=0 or B=0
answer is C.
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Detailed Solution
AB=0⇒AB=0⇒A=0 or B=0
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