If the matrix B is the adjoint of the square matrix A and \[\alpha \] is the value of the determinant of A, then what is AB equal to?

\[\left( \frac{1}{\alpha } \right)I\]

If the matrix B is the adjoint of the square matrix A and \[\alpha \]

1.	If the matrix B is the adjoint of the square matrix A and \[\alpha \] is the value of the determinant of A, then what is AB equal to?
A.	\[\alpha \]
B.	\[\left( \frac{1}{\alpha } \right)I\]
C.	\[I\]
D.	\[\alpha I\]
Answer» E.

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If the matrix B is the adjoint of the square matrix A and \[\alpha \] is the value of the determinant of A, then what is AB equal to?

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