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If A and B are square matrices of the sa...

If A and B are square matrices of the same order and `AB = 3I`, then `A^-1 = ` i] 3 B ii] `frac{1}{3}B` iii] `3B^-1` iv] `frac{1}{3}B^-1`

A

3B

B

`(1)/(3)B`

C

`3B^(-1)`

D

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

Text Solution

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The correct Answer is:
b
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