27.A square matrix of order n is both involuntary and idempotent matri – InterviewSolution

1.	27.A square matrix of order n is both involuntary and idempotent matrix. The value of the determinant of (A+I) is equal to (where I is an identity matrix of order n)
Answer» 27.A square matrix of order n is both involuntary and idempotent matrix. The value of the determinant of (A+I) is equal to (where I is an identity matrix of order n)

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