SOLUTION: Find all n x n-matrices A such that Q^(-1)AQ = A for all invertible n x n-matrices Q.

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Question 439280: Find all n x n-matrices A such that Q^(-1)AQ = A for all invertible
n x n-matrices Q.
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
A is an element of the set of all diagonalizable nxn matrices.