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If A is an invertible matrix and A^(-1)=...

If A is an invertible matrix and `A^(-1)=[(3,5),(5,6)]` then A=?

A

`[(6,-4),(-5,3)]`

B

`[(1/3,1/4),(1/5,1/6)]`

C

`[(-3,2),(5/2,(-3)/2)]`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
D
`A=(A^(-1))^(-1)` . So find the inverse of `A^(-1)`
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