Dividing by
causes the diagonal elements of
I
=
A
see here 1
A
{\displaystyle \mathbf {I} =\mathbf {A} ^{-1}\mathbf {A} }
to be unity. Now, we have to check for Onto.
Matrix inversion also plays a significant role in the MIMO (Multiple-Input, Multiple-Output) technology in wireless communications. A square matrix is singular if and only if its determinant is zero. }
Thus,
A
1
=
(
3
2
2
)
.
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.