Find a matrix P that orthogonally diagonalizes A, and determine P-'AP. A = 1 4 P = P = 2 V3 V3 2 P = 3 2/2 3 P = 3 O p-'AP = 0 1 4 P-'AP = 0 -4 3 0 P-'AP = 0 5 O p--AP = 3 0 0 6 -1 0 P-'AP = 05 +/5

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