haylie1456
29.07.2019 •
Mathematics
Is it possible to contruct a 4x3 matrix b and a 3x4 matrix c such that bc is invertible?
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Ответ:
Matrix C has dimensions 3x4
Write out those dimensions like so: 4x3 3x4
The inner '3's match up so B*C is possible. The dimensions of B*C is 4x4 as these are the outer dimensions when lining up 4x3 3x4
Since B*C is a square matrix, it is possible that an inverse could exist. Keep in mind that this isn't a guarantee as the determinant of B*C could be zero (which would lead to BC being non-invertible). Though of course we'd need more info.
Ответ:
it should be a
step-by-step explanation: