Question: . Suppose A is an n x 72 real matrix with AT = A. (a) (5 points) Prove that the only real eigenvalue of A

Suppose A is an n x 72 real matrix with AT = A. (a) (5 points) Prove that the only real eigenvalue of A is zero. (b) (5 points) Prove that if A is diagonalizable over IR then A is the zero matrix

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