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The inverse of a matrix A is given by [(...

The inverse of a matrix A is given by `[(-2,1),(3/2, -1/2)]` What is A equal to?

A

`[(1,2),(3,4)]`

B

`[(1,2),(-3,4)]`

C

`[(1,2),(3,-4)]`

D

`[(-1,2),(3,4)]`

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