Question: (1) 5. Let. A be an u x 1:. matrix. {31) 51315] Show that if A is an orthogonal matrix, than (lot..(A) = :|:l. (b)

(\"1"\") 5. Let. A be an u x 1:. matrix. {31) 51315] Show that if A is an orthogonal matrix, than (lot..(A) = :|:l. (b) (5 pts) Show that if A 79 U and A3 = D, then A is not diagonalizable. (Hint: Assume A is diagonalizable and then get a contraction.)

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