Question: Observe that idet(A}| : 1 when the matrix A is unitary. Prove that A E ann is unitary.r if and only if A?! : He

Observe that idet(A}| : 1 when the matrix A is unitary.

Observe that idet(A}| : 1 when the matrix A is unitary. Prove that A E ann is unitary.r if and only if \"A?!\" : He\" for any '1) E R\

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