If A=[(3,1),(-1,2)], find A^(-1)....

If `A=[(3,1),(-1,2)]`, find `A^(-1)`.

A

`1/7[(2,-1),(1,3)]`

B

`1/7[(3,1),(-1,2)]`

C

`1/7[(-2,1),(-1,-3)]`

D

`1/7[(2,1),(1,-3)]`

Text Solution

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The correct Answer is:

A

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