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Q6. (a) Examine whether the following matrix is diagonalizable. If so, obtain the
matrix \( P \) such that \( p ^ { - 1 } A P \) is a diagonal matrix \( A = \left[ \begin{array} { c } { - 2 } \\ { 2 } \\ { - 1 } \end{array} \right. \) \( - 3 \)
\( - 6 \)
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