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Section 7.2 Diagonalization

Let A be a square matrix. If you would like to know the matrix P and D such that
P1AP=D,
you can do it in such way.
Let check if the columns of P are eigenvectors.
Important: Are you able to see that AP=PX. Figure out the matrix X
Exercise: For the matrix
B=(122252663),
find the matrix P and D such that
P1AP=D.