4 1Select the option that gives the inverse of the matrix [4 9 1 2 ] \mathbf{A}\left[\begin{array}{rr} -2 & 9 \\ 1 & -4 \end{array}\right] \left[\begin{array}{rr} 2 & -1 \\ -9 & 4 \end{array}\right] C \quad\left[\begin{array}{rr} -2 & 1 \\ 9 & -4 \end{array}\right] \left[\begin{array}{rr} 2 & -9 \\ -1 & 4 \end{array}\right]

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