Eigenvalues & Eigenvectorsmedium
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Let AA be a 2×22 \times 2 matrix such that A(11)=(22)A \begin{pmatrix} 1 \\ 1 \end{pmatrix} = \begin{pmatrix} 2 \\ 2 \end{pmatrix} and A(11)=(33)A \begin{pmatrix} 1 \\ -1 \end{pmatrix} = \begin{pmatrix} -3 \\ 3 \end{pmatrix}. What is the matrix AA?