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A  and B  be 3×3 matrices. Then AB=0  implies

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a
A=0 and B=0
b
|A|=0  and |B|=0
c
Either |A|=0 or |B|=0
d
A=0  or  A=0

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detailed solution

Correct option is C

Conceptual


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Let P and Q be 3x3 matrices with PQ If P3=Q3  and P2Q=Q2P then determinant of P2+Q2 is equal to


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