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If A and B are square matrices of the same order and `AB=3I` then `A^(-1)` is equal to

A

3B

B

`(1)/(3)B`

C

`3B^(-1)`

D

`(1)/(3) B^(-1)`

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B
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TARGET PUBLICATION-MATRICES-CRITICAL THINKING ( 2. 1 Elementary Transformations)
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