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If A is a matrix such that $\begin{bmatrix} 2 & 1 \\ 3 & 2 \end{bmatrix} A\begin{bmatrix} 1 & 1 \end{bmatrix} =\begin{bmatrix} 1 & 0 \\ 0 & 0 \end{bmatrix}$ then A=

\[\begin {array} {1 1} (a)\;\begin{bmatrix} 1 & 1 \\ 0 & 1 \end{bmatrix} & \quad (b)\;\begin{bmatrix} 2 & 1 \end{bmatrix} \\ (c)\;\begin{bmatrix} 1 & 0 \\ -1 & 1 \end{bmatrix} & \quad (d)\;\begin{bmatrix} 2 \\ 3 \end{bmatrix} \end {array}\]

1 Answer

$(d)\;\begin{bmatrix} 2 \\ 3 \end{bmatrix} $
answered Nov 7, 2013 by pady_1
 

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