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in Applications of Matrices and Determinants by (48.7k points)
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Matrices A and B will be inverse of each other only if …….. 

(a) AB = BA 

(b) AB = BA = O

(c) AB = O, BA = I 

(d) AB = BA = I

1 Answer

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Best answer

(d) AB = BA = I

By the definition of invertible matrices two matrices A and B are inverse of each other if 

AB = BA = I.

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