1.

Which among the following is inverse of the matrix A= ( begin{bmatrix}2&3 5&1 end{bmatrix} ) ?

A. ( begin{bmatrix} frac{1}{13}& frac{3}{13} frac{5}{13}& frac{-2}{13} end{bmatrix} )
B. ( begin{bmatrix} frac{-1}{13}& frac{3}{13} frac{5}{13}& frac{-2}{13} end{bmatrix} )
C. ( begin{bmatrix} frac{-1}{13}& frac{3}{13} 1& frac{-2}{13} end{bmatrix} )
D. ( begin{bmatrix} frac{-1}{13}& frac{3}{13} frac{5}{13}&-2 end{bmatrix} )
Answer» C. ( begin{bmatrix} frac{-1}{13}& frac{3}{13} 1& frac{-2}{13} end{bmatrix} )


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