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Using elementary row transformations, find the inverse of the matrix `A=((1,2,3),(2,5,7),(-2,-4,-5))`

A

`[(3,-3,3),(-4,1,-1),(2,0,1)]`

B

`[(3,-3,3),(-4,2,-1),(2,0,1)]`

C

`[(3,-2,-1),(-4,1,-1),(2,0,1)]`

D

`[(3,-2,1),(-4,2,-1),(2,0,1)]`

Text Solution

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The correct Answer is:
C
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