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If A=[(3,-4),(-1,2)] and B is a square m...

If `A=[(3,-4),(-1,2)]` and B is a square matrix of order 2 such that AB=I then B=?

A

`[(1,2),(2,3)]`

B

`[(1,1/2),(2,3/2)]`

C

`[(1,2),(1/2,3/2)]`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
`AB=I rArr B =A^(-1)`
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